Date   

Re: Mach-2 can not reach target

Ray Gralak
 

Terri,

complete and there is no elegant 'out'. I tried the abort buttons, etc... nothing really causes things to abort
(including SGPro).
Once a limit is hit the mount will have tracking stopped and the mount will be in a parked state, both unexpected for SGPro and APPM. It could be there was a popup window someplace that needed to be clicked, thus causing the appearance of one or more of the applications being locked.

I suggest you try using the ":LR0#" command provided yesterday to prevent the source of the problem (a limit fault).

-Ray Gralak
Author of APCC (Astro-Physics Command Center): https://www.astro-physics.com/apcc-pro
Author of PEMPro V3: https://www.ccdware.com
Author of Astro-Physics V2 ASCOM Driver: https://www.siriusimaging.com/apdriver

-----Original Message-----
From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Terri Zittritsch
Sent: Tuesday, August 18, 2020 5:51 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach-2 can not reach target

On Mon, Aug 17, 2020 at 02:36 PM, uncarollo2 <chris1011@...> wrote:


Also please make sure that you have the latest driver version 5.30.10. loaded.

I have been busy all morning here testing various scenarios with my mount in the observatory and I
cannot make it hang up with the limits on or off. I cannot reproduce what you are experiencing.

Rolando


You may have to do a centering action in one of the programs (plate solve) to see the issue. I think the
software waits for the mount to finish moving to the location, and if it is trying to go to the east side of the
meridian (when just flipped for west side) and hitting east limit, and 'bouncing back' , my guess is that it's stuck
in some kind of loop to where the program can not complete it's action. SGPro for me becomes locked up as
does everything else (APCC and driver). There is probably some hand shaking happening that can not
complete and there is no elegant 'out'. I tried the abort buttons, etc... nothing really causes things to abort
(including SGPro).

Terri
Terri



Re: Mach-2 can not reach target

Terri Zittritsch
 

On Mon, Aug 17, 2020 at 02:36 PM, uncarollo2 <chris1011@...> wrote:
Also please make sure that you have the latest driver version 5.30.10. loaded.
 
I have been busy all morning here testing various scenarios with my mount in the observatory and I cannot make it hang up with the limits on or off. I cannot reproduce what you are experiencing.
 
Rolando
 
You may have to do a centering action in one of the programs (plate solve) to see the issue.   I think the software waits for the mount to finish moving to the location, and if it is trying to go to the east side of the meridian (when just flipped for west side) and hitting east limit, and  'bouncing back' , my guess is that it's stuck in some kind of loop to where the program can not complete it's action.   SGPro for me becomes locked up as does everything else (APCC and driver).   There is probably some hand shaking happening that can not complete and there is no elegant 'out'.   I tried the abort buttons, etc... nothing really causes things to abort (including SGPro).    

Terri
Terri


Re: Mach-2 can not reach target

Bill Long
 

No frost, no condensation at all. I even have the dew prevention on. I think Roland is spot on with the window theory. 

The place image at, is on a wooden deck, suspended two stories in the air. Really not the best place to image, but the only option I have now. Dew is rare that high off of the ground, and with the current weather situation here -- dew isnt a thing even if I were at ground level.  


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Christopher Erickson <christopher.k.erickson@...>
Sent: Monday, August 17, 2020 10:11 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Whenever I have seen a foggy disc or donut like that it has usually been condensation or frost on the inside or the outside of the camera protective front glass above the chip. On the outside on nights of extreme Hawaiian humidity or on the inside when my desiccant plug needs recharging. The trials and tribulations of living in Hawaii...


-Christopher Erickson
Observatory engineer
Waikoloa, HI 96738
www.summitkinetics.com
   

On Mon, Aug 17, 2020, 6:13 PM Bill Long <bill@...> wrote:

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Christopher Erickson
 

Whenever I have seen a foggy disc or donut like that it has usually been condensation or frost on the inside or the outside of the camera protective front glass above the chip. On the outside on nights of extreme Hawaiian humidity or on the inside when my desiccant plug needs recharging. The trials and tribulations of living in Hawaii...


-Christopher Erickson
Observatory engineer
Waikoloa, HI 96738
www.summitkinetics.com
   

On Mon, Aug 17, 2020, 6:13 PM Bill Long <bill@...> wrote:
Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

Yep, green. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 9:57 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Shine a light in there and see what color the reflection is. I'm guessing brilliant green, which means yes it's coated but maybe a bit too thick a coating with high reflectivity in green or blue-green. Any green light like OIII will reflect very nicely off that coating.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:26 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Well, that is something I will have a chat with ZWO about. It should be double AR coated on both sides. Thanks for letting me know. 🙂 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 9:25 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
It's a reflection from your camera window that's going back up into the optical path and coming back down to record on the chip. It happens when the sky background is not perfectly dark. Sky light is illuminating the chip twice, once from straight light, second time from a reflection from the chip. I have seen this in cameras that don't have a properly multi-coated cover glass. Yours is probably single coated.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:13 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Roland Christen
 

Shine a light in there and see what color the reflection is. I'm guessing brilliant green, which means yes it's coated but maybe a bit too thick a coating with high reflectivity in green or blue-green. Any green light like OIII will reflect very nicely off that coating.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:26 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Well, that is something I will have a chat with ZWO about. It should be double AR coated on both sides. Thanks for letting me know. 🙂 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 9:25 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
It's a reflection from your camera window that's going back up into the optical path and coming back down to record on the chip. It happens when the sky background is not perfectly dark. Sky light is illuminating the chip twice, once from straight light, second time from a reflection from the chip. I have seen this in cameras that don't have a properly multi-coated cover glass. Yours is probably single coated.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:13 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

AG Optical 10" iDK. Its a CDK competitor, the only one that sells a 10" model. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Brian Valente <bvalente@...>
Sent: Monday, August 17, 2020 9:25 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Bill remind me what is that OTA of yours?

On Mon, Aug 17, 2020 at 9:13 PM Bill Long <bill@...> wrote:
Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>





--
Brian 



Brian Valente


Re: Mach-2 can not reach target

Bill Long
 

Well, that is something I will have a chat with ZWO about. It should be double AR coated on both sides. Thanks for letting me know. 🙂 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 9:25 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
It's a reflection from your camera window that's going back up into the optical path and coming back down to record on the chip. It happens when the sky background is not perfectly dark. Sky light is illuminating the chip twice, once from straight light, second time from a reflection from the chip. I have seen this in cameras that don't have a properly multi-coated cover glass. Yours is probably single coated.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:13 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

 

Bill remind me what is that OTA of yours?


On Mon, Aug 17, 2020 at 9:13 PM Bill Long <bill@...> wrote:
Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>





--
Brian 



Brian Valente


Re: Mach-2 can not reach target

Roland Christen
 

It's a reflection from your camera window that's going back up into the optical path and coming back down to record on the chip. It happens when the sky background is not perfectly dark. Sky light is illuminating the chip twice, once from straight light, second time from a reflection from the chip. I have seen this in cameras that don't have a properly multi-coated cover glass. Yours is probably single coated.

Rolando



-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 11:13 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

Model running tonight, and what do you know... that halo IS there on this system as well. Since its not Astro Dark, I bet it goes away later as I did not see it previously but it was well into Astro Dark then. 

I took some flats and just looked and the OIII flats show the halo as well. So, has nothing to do with my GTX+Flattener (not that I thought it did). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Bill Long <bill@...>
Sent: Monday, August 17, 2020 4:56 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

Yeah I took it all apart when I put the DK out. Next time I have the GTX up I will investigate further. It will probably disappear, whatever it was. 


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:55 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Roland Christen
 

Should also show up in your flat field image.

Roland

-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Mon, Aug 17, 2020 6:32 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

Very little changes needed with the field flattener. I did have this strange halo appear in my frames that I can only reproduce with the flattener. The Quad TCC doesnt show it, and my DK doesnt show anything either with the exact same spacers, adapters, and focuser (NiteCrawler). 




From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of uncarollo2 <chris1011@...> via groups.io <chris1011@...>
Sent: Monday, August 17, 2020 4:29 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Roland Christen
 

I'm thinking Field Flattener which gives more leeway for any tilt, and has higher resolution. Although resolution is probably not an issue with those tiny pixels.

Rolando



-----Original Message-----
From: Dale Ghent <daleg@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 6:23 pm
Subject: Re: [ap-gto] Mach-2 can not reach target


I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>
> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>




Re: Mach-2 can not reach target

Bill Long
 

There is a heater you can turn on in the ZWO driver to prevent dew.


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Konstantin von Poschinger <KPoschinger@...>
Sent: Monday, August 17, 2020 4:24 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 
Hi Roland and Howard,

I stopped imaging cause clouds went in. Then I slewed around in differen ways. From CW up to CCW down on the other side of the meridian and also from CWup on one side to CW up n the other side of the meridian. All went fine! No more errors! Thanks that is it in the moment for me.
Here is on image I sed to you separate on your aol address. The combination is quite good. The small pixels and the sony sensor are really great. The dew is a small problem with the ASI.

Konstantin


Am 18.08.2020 um 00:20 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Bill Long
 

Nailing down the spacing gets difficult as well, since the tilt is present. Solving the tilt is a challenge when the spacing is not deadly accurate. So you end up in this vicious cycle. 

I decided to put the camera on a flatfield DK, and I have most of the tilt solved. Then I will try again on the TCC when the camera is fairly well tamed to begin with. big chip, really small pixels, so it is pretty brutal to get dialed in on fast optics.

I added 2.3mm to the spacing published for the Quad TCC and that seemed to be the point of least remaining curvature. I could not get the far edges to cooperate though so I may still have more work to do.  


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Dale Ghent <daleg@...>
Sent: Monday, August 17, 2020 4:23 PM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach-2 can not reach target
 

I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

> On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:
>
>
> I have ASI6200 with a 7 position filter wheel attached behind the flattener.
> I would love to see how that works. I've been thinking about a QHY 600 camera.
>
> Rolando
>
>

> -----Original Message-----
> From: Konstantin von Poschinger <KPoschinger@...>
> To: main@ap-gto.groups.io
> Sent: Mon, Aug 17, 2020 4:46 pm
> Subject: Re: [ap-gto] Mach-2 can not reach target
>
> Sorry, I have done now the right on! I will report when all is fine now!
> By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.
>
> Konstantin
>
> <IMG_2228.jpeg>
>> Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:
>>
>>
>> As Roland said I can prevent this with the $SLD0# command.
>> Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.
>>
>> Rolando
>>
>>
>> -----Original Message-----
>> From: Konstantin von Poschinger <KPoschinger@...>
>> To: main@ap-gto.groups.io
>> Sent: Mon, Aug 17, 2020 3:10 pm
>> Subject: Re: [ap-gto] Mach-2 can not reach target
>>
>> Hello Howard,
>>
>> I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.
>>
>> Grüsse
>>
>> Konstantin v. Poschinger
>>
>>
>> Hammerichstr. 5
>> 22605 Hamburg
>> 040/8805747
>> 0171/1983476
>>
>>> Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:
>>>
>>> Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.
>
>
> <IMG_2228.jpeg>





Re: Mach-2 can not reach target

Konstantin von Poschinger
 

Hi Roland and Howard,

I stopped imaging cause clouds went in. Then I slewed around in differen ways. From CW up to CCW down on the other side of the meridian and also from CWup on one side to CW up n the other side of the meridian. All went fine! No more errors! Thanks that is it in the moment for me.
Here is on image I sed to you separate on your aol address. The combination is quite good. The small pixels and the sony sensor are really great. The dew is a small problem with the ASI.

Konstantin


Am 18.08.2020 um 00:20 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011=aol.com@groups.io>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that. 

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem.  This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Dale Ghent
 

I'm working out the QHY600 + 7x50mm filter wheel on my 130GTX+QTCC right now. Long story short, the focal ratio made traditional tilt correction impossible to do and so I'm awaiting delivery of a CTU from Gerd Neumann, which should have arrived today but FedEx seem to have decided to start competing with UPS in my area for least reliable delivery.

Once I get that on with proper backspacing (I might be able to use an existing part I have, else it's another ~25 day wait for something from Precise Parts) I will hopefully be in business.

Bill's right, the IMX455 sensor that is in the QHY600/ZWO ASI6200 is an astounding performer and blows every prior generation of CMOS clean out of the water. Once the tilt and backfocus demon is tamed, that is.

On Aug 17, 2020, at 6:20 PM, uncarollo2 <chris1011@...> via groups.io <chris1011@...> wrote:


I have ASI6200 with a 7 position filter wheel attached behind the flattener.
I would love to see how that works. I've been thinking about a QHY 600 camera.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 4:46 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Sorry, I have done now the right on! I will report when all is fine now!
By the way I am imaging with a Stowaway on the Mach2. It is a nice combination and I am happy with the performance. I have ASI6200 with a 7 position filter wheel attached behind the flattener.

Konstantin

<IMG_2228.jpeg>
Am 17.08.2020 um 22:15 schrieb uncarollo2 <chris1011@...> via groups.io <chris1011@...>:


As Roland said I can prevent this with the $SLD0# command.
Well, Roland said it wrong and Howard said it right. Use :LR0# to turn off the RA limits at the Meridian.

Rolando


-----Original Message-----
From: Konstantin von Poschinger <KPoschinger@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 3:10 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hello Howard,

I have set the limits on both sides! The problem is to move from a cw up position on the east direct to a cw up position in the west. As Roland said I can prevent this with the $SLD0# command. I will test that.

Grüsse

Konstantin v. Poschinger


Hammerichstr. 5
22605 Hamburg
040/8805747
0171/1983476

Am 17.08.2020 um 21:42 schrieb Howard Hedlund <howard@...>:

Setting an appropriate meridian delay BEFORE the counterweight shaft goes up will also avoid the problem. This is easily set in APCC.

<IMG_2228.jpeg>


Re: Mach-2 can not reach target

Roland Christen
 

APCC can be set up to work this way already.
The other issues are new to the CP5 Mach2 and will be dealt with in new firmware that I am testing over the next couple of days.

Rolando

-----Original Message-----
From: Horia <ATM@...>
To: main@ap-gto.groups.io
Sent: Mon, Aug 17, 2020 5:44 pm
Subject: Re: [ap-gto] Mach-2 can not reach target

Hi Roland,
 
>>The CP5 has a built-in encoder limit which turns the mount off and parks it
>>when the scope tracks approximately 1 minute past the meridian. This limit
>>comes up as default ON when you initialize the mount. We put this into our
>>latest CP firmware to solve the problem of users that let the mount track past
>>the meridian unattended and eventually crash the scope into the pier.
>>These limits are independent of any limits set in APCC at this point.
 
I would like to suggest a user friendlier approach, based on the following order of events:
 
1.     *   First the mount will cross the meridian.
2.     *  Sometime after the meridian, the image acquisition software (the automation software) sees that the mount is past the meridian and, between two acquisition frames, will flip the mount, by issuing a GoTo command to the actual target coordinates or by sending a SetSideOfPier command.
3.    * If – and only if – something goes wrong (the PC crashed, the automation software has a bug, the user forgot to setup something) the mount will eventually hit a meridian limit and will stop tracking.
 
For this to work, it would be great to have the possibility to send to the CP5, during the initialization process, not only a flag "Meridian Limits On/Off" but also a value for the meridian limit, in minutes-of-time past meridian. To be sure that this limit will work also in case the PC crashes, this should be completely independent of APCC.
 
Kind regards,
Horia

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