Date   

Re: Multi-star guiding

Joel Short
 

Interestingly I just learned today that PHD2 now has multi-star guiding.  The results by other users look promising, and I'm hoping to try it tonight with my AP1100.  Looks to be clear in northern Indiana, but the seeing conditions don't look great.  With my "glass half full" outlook, that means it should be a good test for the new multi-star guiding!  :)
joel


Re: Multi-star guiding

Michael Hamburg
 

That tracking error graph is something to really envy! Congratulations!

Best wishes, Michael


On Thursday, December 3, 2020, 12:06:16 PM EST, Roland Christen via groups.io <chris1011@...> wrote:


Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas Smile




--
Roland Christen
Astro-Physics


Re: [ap-ug] Multi-star guiding

Bill Long
 

The FLI version of that usually has about 6e- noise, whereas the others are 9-12e- if that matters to you. If you can get your hands on the FLI ML16200 camera, you will love it. 

Alternatively, there is the QSI6162 camera which is more readily available, has a little higher noise (9e- I think), but has different spacing than the rest of the QSI600 series, although does come in that all-in-one package.


From: chris1011@... <chris1011@...>
Sent: Thursday, December 3, 2020 10:26 AM
To: bill@... <bill@...>; main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-ug] Multi-star guiding
 
I'm aiming for a 16200 before they disappear completely.

Roland


-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Dec 3, 2020 11:21 am
Subject: Re: [ap-ug] Multi-star guiding

Big fan of the Lodestar x2 and the Ultrastar. 

Bigger chip, those IMX455 cameras are really popular, and you can still find some 16200 and 16803 cameras, although those are phased out and becoming increasingly difficult to locate, if at all.  


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Thursday, December 3, 2020 9:06 AM
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-ug] Multi-star guiding
 
Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas Smile




Re: [ap-ug] Multi-star guiding

Roland Christen
 

I'm aiming for a 16200 before they disappear completely.

Roland


-----Original Message-----
From: Bill Long <bill@...>
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Sent: Thu, Dec 3, 2020 11:21 am
Subject: Re: [ap-ug] Multi-star guiding

Big fan of the Lodestar x2 and the Ultrastar. 

Bigger chip, those IMX455 cameras are really popular, and you can still find some 16200 and 16803 cameras, although those are phased out and becoming increasingly difficult to locate, if at all.  


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Thursday, December 3, 2020 9:06 AM
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-ug] Multi-star guiding
 
Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas Smile




--
Roland Christen
Astro-Physics


Re: Mach2 Keypad Availability

Bill Long
 

Great update! Thrilled to get some new capabilities for the CP4. Great work!


From: main@ap-gto.groups.io <main@ap-gto.groups.io> on behalf of Marj Christen <marj@...>
Sent: Thursday, December 3, 2020 9:20 AM
To: main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: Re: [ap-gto] Mach2 Keypad Availability
 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?


Re: Mach2 Keypad Availability

Jeff B
 

Any chance of an Emergency Use Authorization?  😀😷


On Thu, Dec 3, 2020 at 12:17 PM Marj Christen <marj@...> wrote:

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?


Re: [ap-ug] Multi-star guiding

Bill Long
 

Big fan of the Lodestar x2 and the Ultrastar. 

Bigger chip, those IMX455 cameras are really popular, and you can still find some 16200 and 16803 cameras, although those are phased out and becoming increasingly difficult to locate, if at all.  


From: main@ap-ug.groups.io <main@ap-ug.groups.io> on behalf of Roland Christen via groups.io <chris1011@...>
Sent: Thursday, December 3, 2020 9:06 AM
To: main@ap-ug.groups.io <main@ap-ug.groups.io>; main@ap-gto.groups.io <main@ap-gto.groups.io>
Subject: [ap-ug] Multi-star guiding
 
Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas Smile




Re: [ap-ug] Multi-star guiding

Dale Ghent
 

It's a bit serendipitous that you've brought up this topic! Just yesterday, the PHD2 developers released a development preview build of PHD2 2.6.9 that has multi-star guiding implemented. It has been in testing for the past 2 or so months, and this is the first public release where it's available.

I used it for the first time last night during a 10 hour long dusk to dawn session, imaging StDr 56 and then M81/82 in Ha. Using APCC Pro with a fresh model and a recent PEC, my Mach1 guided in the mid-.40's arcsec RMS on average, and down into the mid-.30's whenever the wind that was present decided to completely die down. My pixel scale is 0.888 arcsec/px. I got fantastic stars and the only throw-aways were due to some cirrus clouds that blew through in the early morning.

I guide using a Baader Vario-Finder with ZWO ASI290MM-mini camera.

On Dec 3, 2020, at 12:06, Roland Christen via groups.io <chris1011@...> wrote:

Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas

<dummyfile.0.part>



Re: Mach2 Keypad Availability

 

Our first goal is to release the new firmware for the GTOCP4, which we are nearly ready to do. The keypad update will be available sometime after that. The manual needs to be updated for the GTOCP4 since some aspects are different.

 

It’s coming soon, hang in there.

 

Clear Skies,

 

Marj Christen

Astro-Physics, Inc

11250 Forest Hills Rd

Machesney Park, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

 

From: main@ap-gto.groups.io [mailto:main@ap-gto.groups.io] On Behalf Of Luke Leege
Sent: Thursday, December 03, 2020 9:02 AM
To: main@ap-gto.groups.io
Subject: Re: [ap-gto] Mach2 Keypad Availability

 

Any news on when the update will be available for current keypad owners?


Re: [ap-ug] Multi-star guiding

James Stone
 

Thanks for sharing this. I’ve been looking at this solution for guiding: https://staraid.ai

Does anyone have any experience with this?

 

Would be interested in where you end up in terms of an upgraded camera.

 

 

From: <main@ap-ug.groups.io> on behalf of "Roland Christen via groups.io" <chris1011@...>
Reply-To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>
Date: Thursday, December 3, 2020 at 12:06 PM
To: "main@ap-ug.groups.io" <main@ap-ug.groups.io>, "main@ap-gto.groups.io" <main@ap-gto.groups.io>
Subject: [ap-ug] Multi-star guiding

 

Hello fellow Astronuts,

 

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

 

Rolando

Notes:

The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

 

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas

 

 

 


Multi-star guiding

Roland Christen
 

Hello fellow Astronuts,

I've been meaning to try something new (for me) in my guided imaging. My setup consists of a 160EDF refractor on a mach2 encoder mount, a QSI-683WSG camera with off-axis pickup, and a Lodestar guide camera. I do all of my imaging with MaximDL Pro6 which has a multi star guiding function. Up to now I have used single star guiding and so i have to pick a guide star and let the guider do its thing. That's an extra step, and since I'm lazy I decided to let the program guide on the whole enchilada using the multi star guide method. So, how did that work out for a 20 minute exposure? Well see below:

Rolando
Notes:
The guiding was effortless, extremely accurate (partly thanks to the precision movements of the Mach2 mount), and required no thinking on my part. The Lodestar guide camera is really tops in my book. It picks up stars in every part of the sky, even in star-poor regions. My guide exposures are 5 seconds with 1 second delay between exposures. My Min Move for both axes was set to 0.02 seconds (which is 0.3 arc sec), and the aggressiveness was set to 8 out of 10 since the seeing was quite good. Outside temperature last night was 25 degrees F. The peak values reflect the dither moves between exposures in case you're wondering.

The California Nebula did not fit into my camera's field of view, oh well. Thus I'm in the market for a larger chip camera for Christmas Smile




--
Roland Christen
Astro-Physics


Re: Mach2 Keypad Availability

Luke Leege
 

Any news on when the update will be available for current keypad owners?


Re: Refractor on top of OTA ok? AP 1100 GTO Mount

David Enck
 

Thanks for the info Robert, the 1100 holds about 110 lbs, the 1200 around 140 or so from my quick  google search.. I think I would be close to 110 piggyback, so will aim for side by side I think..

Cheers,

David

On Dec 2, 2020, at 8:02 PM, Astrobob <imager1940@...> wrote:



 

David,

 

I’m not sure if the AP1200 compares closely with the AP1100…..but I might be near the limit for mine.

 

I have a C14 (50lbs) with a 4” refractor as a guide/wide field scope (9lbs) mounted piggy back with very study rings. And 2 finder scopes (2.5lbs)

One for each scope.

Also, an ST10 on the C14 and an ST8 using Nikon lenses and mounted under the dovetail for wide field imaging (about 5.5lbs).

All mounted on my AP1200 GTO and counter balanced by 76lbs of counterweights.

When I loosen the mounts clutches for balancing, I can move both axes with my fingertips and no unnecessary noise when

slewing. Balancing is easy on both axes. Guiding is very good with no noticeable flexure.  

 

Robert

 

Sent from Mail for Windows 10

 


Re: Refractor on top of OTA ok? AP 1100 GTO Mount

Astrobob
 

 

David,

 

I’m not sure if the AP1200 compares closely with the AP1100…..but I might be near the limit for mine.

 

I have a C14 (50lbs) with a 4” refractor as a guide/wide field scope (9lbs) mounted piggy back with very study rings. And 2 finder scopes (2.5lbs)

One for each scope.

Also, an ST10 on the C14 and an ST8 using Nikon lenses and mounted under the dovetail for wide field imaging (about 5.5lbs).

All mounted on my AP1200 GTO and counter balanced by 76lbs of counterweights.

When I loosen the mounts clutches for balancing, I can move both axes with my fingertips and no unnecessary noise when

slewing. Balancing is easy on both axes. Guiding is very good with no noticeable flexure.  

 

Robert

 

Sent from Mail for Windows 10

 


Re: Another Recommendation of the Ridgid Tool Cart for transporting the AP900/1100

john vogt
 

Hi Bob,

The TTS bags are the small version. With two weights per bag their easily manageable.
I think the max per bag would be 2-18lb weights..

CS,
John


Re: Refractor on top of OTA ok? AP 1100 GTO Mount

Christopher Erickson
 

Yea, I opted for a C14 over an M14 because it is so much lighter, thermally stabilizes faster, and I have a Hyperstar for it.

I have a Meade 16 as well and I have been considering taking it out of the Meade forks and putting it on a 1200 or 1600.


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


On Wed, Dec 2, 2020, 3:17 PM David Enck <davidenck@...> wrote:
Thanks for the advice, you temp me for a larger refractor :-). Although the C14 is a good bit lighter than my lx850 Meade 14..

On Dec 2, 2020, at 1:29 PM, Christopher Erickson <christopher.k.erickson@...> wrote:


I would put a tandem bar on top of the mount and the two scopes side by side. I have done that with a C14 and a 130EDF-GT with good results.

ADM has tandem bars.

Don't be tempted to put a guider on the refractor. Way too much flexure in the reflector for that to ever work. Use an off-axis or on-axis guider on the reflector instead.

There will be some inevitable pointing error between the scopes. You can either:

1. Don't worry about it. There will be inevitable differential flexure as you move around the sky. 

2. Use adjustable rings on the refractor.

3. Use an ADM X-Y adjustable platform under the refractor.


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

On Wed, Dec 2, 2020, 10:52 AM George <george@...> wrote:

David,

 

I do not recommend it due to the enormous moment arm.   Sticking the 20 lb. refractor on top, way out from the center of gravity is like adding 40-50 lb.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of David Enck
Sent: Wednesday, December 2, 2020 2:28 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Refractor on top of OTA ok? AP 1100 GTO Mount

 

Hello AP Folks,

I  currently run a Meade LX850 14 inch SCT  ota on my 1100 GTO. It handles it beautifully for visual and photography.. I am  looking to possibly add a Takahashi TSA 120  APO to the mix. My 14 inch weights about 75 pounds with all the gear on it. The new TAK 120 is 15 pounds bare, so about 20 with rings and a dovetail bar..  If I  choose to mount it on top of the OTA will it be ok? I  have about 118 lbs of counterweights available to me to use to counter balance it.

I am looking  to  go this route vs side by side  mounting as it will be more difficult to  balance the dec axis by myself with this much weight involved trying to slide the saddle plates back and forth. There is a  huge weight difference between the two scopes..

Thank you for you  advice and thoughts!  

David


Re: Refractor on top of OTA ok? AP 1100 GTO Mount

David Enck
 

Thanks for the advice, you temp me for a larger refractor :-). Although the C14 is a good bit lighter than my lx850 Meade 14..

On Dec 2, 2020, at 1:29 PM, Christopher Erickson <christopher.k.erickson@...> wrote:


I would put a tandem bar on top of the mount and the two scopes side by side. I have done that with a C14 and a 130EDF-GT with good results.

ADM has tandem bars.

Don't be tempted to put a guider on the refractor. Way too much flexure in the reflector for that to ever work. Use an off-axis or on-axis guider on the reflector instead.

There will be some inevitable pointing error between the scopes. You can either:

1. Don't worry about it. There will be inevitable differential flexure as you move around the sky. 

2. Use adjustable rings on the refractor.

3. Use an ADM X-Y adjustable platform under the refractor.


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

On Wed, Dec 2, 2020, 10:52 AM George <george@...> wrote:

David,

 

I do not recommend it due to the enormous moment arm.   Sticking the 20 lb. refractor on top, way out from the center of gravity is like adding 40-50 lb.

 

Regards,

 

George

 

George Whitney

Astro-Physics, Inc.

Phone:  815-222-6538 (direct line)

Phone:  815-282-1513 (office)

Email:  george@...

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of David Enck
Sent: Wednesday, December 2, 2020 2:28 PM
To: main@ap-gto.groups.io
Subject: [ap-gto] Refractor on top of OTA ok? AP 1100 GTO Mount

 

Hello AP Folks,

I  currently run a Meade LX850 14 inch SCT  ota on my 1100 GTO. It handles it beautifully for visual and photography.. I am  looking to possibly add a Takahashi TSA 120  APO to the mix. My 14 inch weights about 75 pounds with all the gear on it. The new TAK 120 is 15 pounds bare, so about 20 with rings and a dovetail bar..  If I  choose to mount it on top of the OTA will it be ok? I  have about 118 lbs of counterweights available to me to use to counter balance it.

I am looking  to  go this route vs side by side  mounting as it will be more difficult to  balance the dec axis by myself with this much weight involved trying to slide the saddle plates back and forth. There is a  huge weight difference between the two scopes..

Thank you for you  advice and thoughts!  

David


Re: Mach2 Keypad Availability

Roland Christen
 

We are shipping them.

Rolando



-----Original Message-----
From: Haydon Burns <hayburns@...>
To: main@ap-gto.groups.io
Sent: Wed, Dec 2, 2020 6:16 pm
Subject: [ap-gto] Mach2 Keypad Availability

Hi, thought I’d check in on the availability for people who have one on order.  Are the keypads in between production runs and/or are they still backlogged.  Just trying to manage my expectations on when I might receive one that is on order.  Thanks

--
Roland Christen
Astro-Physics


Mach2 Keypad Availability

Haydon Burns
 

Hi, thought I’d check in on the availability for people who have one on order.  Are the keypads in between production runs and/or are they still backlogged.  Just trying to manage my expectations on when I might receive one that is on order.  Thanks


Re: Refractor on top of OTA ok? AP 1100 GTO Mount

Mike Dodd
 

On 12/2/2020 3:28 PM, David Enck wrote:

Thank you for you advice and thoughts!
I recommend against having ANY weight on top of OTA rings, ESPECIALLY a 14" OCT.

A tandem bar is a MUCH better choice, even though it means balancing the setup on three axes. I have a Triad bar (used as a tandem bar), and I ask my wife to help me when balance is (rarely) needed. I also wipe a thin coat of oil on the dovetail plates to make balancing easier.

--- Mike

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