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Re: Refractor advice desired
Dave Goodyear <dave@...>
I have an NP127is scope.. newest version..
I’ll have to look back though this thread to read up on what you guys are talking about..
Dave Goodyear KB2 Networks Inc. 214 Main St. #318 El Segundo, CA 90245 310-933-2436
From: ap-gto@... [mailto:ap-gto@...]
Sent: Saturday, June 07, 2014 6:20 PM To: ap-gto@... Subject: Re: [ap-gto] Re: Refractor advice desired
Anyone in our group has the televue 127 mm f 5 scope ? Suresh
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Re: Refractor advice desired
Dave Goodyear <dave@...>
I have an NP127is.
Dave Goodyear KB2 Networks Inc. 214 Main St. #318 El Segundo, CA 90245 310-933-2436 cid:image001.png@01CB2D84.4D351AD0 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, June 07, 2014 6:20 PM To: ap-gto@yahoogroups.com Subject: Re: [ap-gto] Re: Refractor advice desired Anyone in our group has the televue 127 mm f 5 scope ? Suresh On Jun 8, 2014, at 6:04 AM, "OlivDeso olivdeso@yahoo.com [ap-gto]" <ap-gto@yahoogroups.com> wrote: The TOA 130 has some assets: - very low spherochromatism due to its particular formula : 2 FPL53 ED lenses and wide air spaced and F7.7 -> it performs much better at short wavelengths than other triplets. If you plan to do some solar CaK imaging, this is the best choice. - can be equiped with the large RD reducer 4" -> interresting for wide field and large sensor, up to 24x36 with 750mm focal length So suitable for imaging, with large sensors. Plenty of photo accessories. But of course it is large and heavy, takes longer to cool than oil triplets. At my side I prefered the AP130GT : much smaller and lighter, shorter F ratio, fast cool down, perfect combo with the 8300 sensor or APS-C sensors, Also, for visual use , the AP130 will give wider fields than the tak130 and the TC140. In visual planetary use, the AP 130 excells. The better performance of the Tak 130 in the violet channel will make only a marginal difference... to my eyes. I bought a second hand one, there are some from time to time on AM. The older model, non GT and F6 is excellent also. One has been tested in France recently, on a profesionnal interferometer, with outstanding results. Here is the link to the report. The result is breathtaking : the reallity is as good as theory, only 64nm PTV at 543nm -> Lamda / 8.5 in green ! http://airylab.com/contenu/mesures/astro/rapport%202013-15001-a.pdf You can also see, that despite a very short focal ratio, the spherochromatism is very well controled, and the strehl is still well above the diffraction limit from blue to red, which is not so common in short triplets. So perfectly calculated and manufactured, and of course superfine polished which will give spike less stars (which does not appears in the report) i.e. a jewel Just state of the art work. Congratulation and full respect to Rollando. Olivier Le Vendredi 6 juin 2014 23h19, "s24man@gmail.com [ap-gto]" <ap-gto@yahoogroups.com> a écrit : I second this. I have the same scope and mount and it works great. _____ Posted by: OlivDeso <olivdeso@yahoo.com> _____ <https://groups.yahoo.com/neo/groups/ap-gto/conversations/messages/44167;_ylc=X3oDMTJxM2E2b2h0BF9TAzk3MzU5NzE0BGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BG1zZ0lkAzQ0MTY3BHNlYwNmdHIEc2xrA3JwbHkEc3RpbWUDMTQwMjE4NzY3Mw--?act=reply&messageNum=44167> Reply via web post • <mailto:olivdeso@yahoo.com?subject=Re%3A%20%5Bap-gto%5D%20Re%3A%20Refractor%20advice%20desired> Reply to sender • <mailto:ap-gto@yahoogroups.com?subject=Re%3A%20%5Bap-gto%5D%20Re%3A%20Refractor%20advice%20desired> Reply to group • <https://groups.yahoo.com/neo/groups/ap-gto/conversations/newtopic;_ylc=X3oDMTJlYm05OGZmBF9TAzk3MzU5NzE0BGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BHNlYwNmdHIEc2xrA250cGMEc3RpbWUDMTQwMjE4NzY3Mw--> Start a New Topic • <https://groups.yahoo.com/neo/groups/ap-gto/conversations/topics/44065;_ylc=X3oDMTM2dXZkdmYwBF9TAzk3MzU5NzE0BGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BG1zZ0lkAzQ0MTY3BHNlYwNmdHIEc2xrA3Z0cGMEc3RpbWUDMTQwMjE4NzY3MwR0cGNJZAM0NDA2NQ--> Messages in this topic (8) <https://groups.yahoo.com/neo/groups/ap-gto/info;_ylc=X3oDMTJlaGxrYWZxBF9TAzk3MzU5NzE0BGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTQwMjE4NzY3Mw--> Visit Your Group · <https://groups.yahoo.com/neo/groups/ap-gto/members/all;_ylc=X3oDMTJmcDBjaDI2BF9TAzk3MzU5NzE0BGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE0MDIxODc2NzM-> New Members 1 <https://groups.yahoo.com/neo;_ylc=X3oDMTJkM3UxdDB2BF9TAzk3NDc2NTkwBGdycElkAzEyOTI4OTMEZ3Jwc3BJZAMxNzA1MDgyODA2BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxNDAyMTg3Njcz> Yahoo! Groups • <https://info.yahoo.com/privacy/us/yahoo/groups/details.html> Privacy • <mailto:ap-gto-unsubscribe@yahoogroups.com?subject=Unsubscribe> Unsubscribe • [Non-text portions of this message have been removed]
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Re: Refractor advice desired
Suresh Mohan
Anyone in our group has the televue 127 mm f 5 scope ? Suresh
On Jun 8, 2014, at 6:04 AM, "OlivDeso olivdeso@... [ap-gto]" <ap-gto@...> wrote:
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Re: Refractor advice desired
OlivDeso
The TOA 130 has some assets: - very low spherochromatism due to its particular formula : 2 FPL53 ED lenses and wide air spaced and F7.7 -> it performs much better at short wavelengths than other triplets. If you plan to do some solar CaK imaging, this
is the best choice. - can be equiped with the large RD reducer 4" -> interresting for wide field and large sensor, up to 24x36 with 750mm focal length So suitable for imaging, with large sensors. Plenty of photo accessories. But of course it is large and heavy, takes longer to cool than oil triplets. At my side I prefered the AP130GT : much smaller and lighter, shorter F ratio, fast cool down, perfect combo with the 8300 sensor or APS-C sensors, Also, for visual use , the AP130 will give wider fields than the tak130 and the TC140. In visual planetary use, the AP 130 excells. The better performance of the Tak 130 in the violet channel will make only a marginal difference... to my eyes. I bought a second hand
one, there are some from time to time on AM. The older model, non GT and F6 is excellent also. One has been tested in France recently, on a profesionnal interferometer, with outstanding results. Here is the link to the report. The result is breathtaking : the reallity is as good as theory, only 64nm PTV at 543nm -> Lamda / 8.5 in green ! http://airylab.com/contenu/mesures/astro/rapport%202013-15001-a.pdf You can also see, that despite a very short focal ratio, the spherochromatism is very well controled, and the strehl is still well above the diffraction limit from blue to red, which is not so common in short triplets. So perfectly calculated and manufactured, and of course superfine polished which will give spike less stars (which does not appears in the report) i.e. a jewel Just state of the art work. Congratulation and full respect to Rollando. Olivier
Le Vendredi 6 juin 2014 23h19, "s24man@... [ap-gto]" a écrit : I second this. I have the same scope and mount and it works great.
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GTO Keypad
Jeff
Hi All, My GTO keypad has stopped knowing where Messier objects, etc are. It works fine on Stars, Solar System Objects, and direct entry of the RA/DEC coordinates. Is there another potential cause other than a dead battery. I sent the unit back to AP in October to have the battery replaced and the catalog reloaded. Unfortunately, last night was the first night that I could get out to test it. It was cold this winter ; ) Anyway, it is still not working. Has anyone seen a fault that drains the battery rapidly or is there something that I may have forgotten to do to get the catalog recognized? Thanks, Jeff
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Re: COM Port Problems!
Dave Goodyear <dave@...>
The windows 8 driver is beta..
Dave Goodyear KB2 Networks Inc. 214 Main St. #318 El Segundo, CA 90245 310-933-2436 cid:image001.png@01CB2D84.4D351AD0 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, June 07, 2014 4:58 PM To: ap-gto@yahoogroups.com Subject: RE: [ap-gto] COM Port Problems! There’s a driver for window 8.1 for the single port keyspan. There isn’t a driver for the 4 port keypan. Dave Goodyear KB2 Networks Inc. 214 Main St. #318 El Segundo, CA 90245 310-933-2436 cid:image001.png@01CB2D84.4D351AD0 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, June 07, 2014 4:27 PM To: ap-gto@yahoogroups.com Subject: Re: [ap-gto] COM Port Problems! I run Keyspan on Windows 7. I have read that Keyspan drivers do not work with Windows 8. I do not know if this is true or not. It is worth checking out. Alan On Jun 7, 2014, at 5:41 PM, "bbrown1382@aol.com [ap-gto] <mailto:bbrown1382@aol.com%20[ap-gto]> " <ap-gto@yahoogroups.com> wrote: Thanks for all the great responses, I have a Keyspan en route now, and was able to dig up an adapter I had here from "Plugable". With the straight-through RS-232 cable I was using for EQMOD with my Atlas I am able to get connected to both PEMPro and Starry Nights Pro 7. This should give me a fighting chance at a polar alignment tonight. But I do have one weird issue to resolve: it seems that the mount has a will of its own regarding where it wants to point. I was using the keypad in the SN7 telescope controller and the mount seemed determined to go off on its own. Does the AP1200 have to be zeroed after the rough north polar alignment (in my case very rough)? It works fine with the hand controller while being manually pointed, but goes off in unexpected directions when given GoTo commands for objects in the catalog -- it's off by 45 or more degrees. I noticed in the settings that I could not input -77 for my longitude, it would only take 077 on the key pad. Could this be a factor? What am I doing wrong here? Thanks again. Clear Skies, Brian [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
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Re: COM Port Problems!
Dave Goodyear <dave@...>
There’s a driver for window 8.1 for the single port keyspan.
There isn’t a driver for the 4 port keypan. Dave Goodyear KB2 Networks Inc. 214 Main St. #318 El Segundo, CA 90245 310-933-2436 cid:image001.png@01CB2D84.4D351AD0 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, June 07, 2014 4:27 PM To: ap-gto@yahoogroups.com Subject: Re: [ap-gto] COM Port Problems! I run Keyspan on Windows 7. I have read that Keyspan drivers do not work with Windows 8. I do not know if this is true or not. It is worth checking out. Alan On Jun 7, 2014, at 5:41 PM, "bbrown1382@aol.com [ap-gto]" <ap-gto@yahoogroups.com> wrote: Thanks for all the great responses, I have a Keyspan en route now, and was able to dig up an adapter I had here from "Plugable". With the straight-through RS-232 cable I was using for EQMOD with my Atlas I am able to get connected to both PEMPro and Starry Nights Pro 7. This should give me a fighting chance at a polar alignment tonight. But I do have one weird issue to resolve: it seems that the mount has a will of its own regarding where it wants to point. I was using the keypad in the SN7 telescope controller and the mount seemed determined to go off on its own. Does the AP1200 have to be zeroed after the rough north polar alignment (in my case very rough)? It works fine with the hand controller while being manually pointed, but goes off in unexpected directions when given GoTo commands for objects in the catalog -- it's off by 45 or more degrees. I noticed in the settings that I could not input -77 for my longitude, it would only take 077 on the key pad. Could this be a factor? What am I doing wrong here? Thanks again. Clear Skies, Brian
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Re: COM Port Problems!
Alan Pryor
I run Keyspan on Windows 7. I have read that Keyspan drivers do not work with Windows 8. I do not know if this is true or not. It is worth checking out. Alan
On Jun 7, 2014, at 5:41 PM, "bbrown1382@... [ap-gto]" <ap-gto@...> wrote:
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Re: AP ASCOM driver runtime error
Could be a dirty/oxidized/damaged connector.
Christopher
Erickson
From: ap-gto@... [mailto:ap-gto@...] Sent: Saturday, June 07, 2014 11:00 AM To: ap-gto@... Subject: RE: [ap-gto] Re: AP ASCOM driver runtime error I've been using this USB/serial driver without a problem about two
years.
Is it more likely
USB/serial cable problem or the serial cable itself?
Thank you very
much.
Donghun
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Some New and Some Reprocessed Images
Steve Reilly
Back this past April I acquired a new to me NEC MultiSync wide gamut monitor and I decided to revisit some on my older images as well as some of the more recent. One thing is clear when using such a monitor is that most problems will become more apparent especially if your background is anything less than dark. So I decided to try reprocessing some of these images to see if I could produce what I thought was a better then original image. Of course I’ve learned a few more things about processing since some of these were taken and use new to me processes in software than before so it’s not exactly a fair comparison. What I do notice is that the images will be somewhat lighter on the off the shelf computer monitors than on this calibrated monitor so there is that difference. I do use a calibrator on the off the shelf monitor but there is a wide difference in the two side by side.
The two monitors are both connected to this computer and the NEC is setup as an extended workspace so if I drag this window from Outlook halfway across to cover both screens just the white background is different. The NEC is white while the Hanns is bluish/yellowish white. Anyway, I’ve uploaded several pages that have links to these images. So far there are 10 images each with a link to either a 1600 or 2000 pixel wide image. I’ve just only noticed some deringing on the NGC7129 image and will address that.
Direct links to these two pages are:
http://www.astral-imaging.com/Reprocessed_Images.htm
http://www.astral-imaging.com/Reprocessed_Images_1.htm
-Thanks for looking,
Steve
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Re: AP ASCOM driver runtime error
Donghun
Thank you guys.
I will get a new USB/Serial cable first. The trouble is that this doesn't happen all the time but only happens once in a while so it is difficult to find out what the faulty part is. Donghun
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Re: COM Port Problems!
Brian Brown
Thanks for all the great responses, I have a Keyspan en route now, and was able to dig up an adapter I had here from "Plugable". With the straight-through RS-232 cable I was using for EQMOD with my Atlas I am able to get connected to both PEMPro and Starry Nights Pro 7. This should give me a fighting chance at a polar alignment tonight. But I do have one weird issue to resolve: it seems that the mount has a will of its own regarding where it wants to point. I was using the keypad in the SN7 telescope controller and the mount seemed determined to go off on its own. Does the AP1200 have to be zeroed after the rough north polar alignment (in my case very rough)? It works fine with the hand controller while being manually pointed, but goes off in unexpected directions when given GoTo commands for objects in the catalog -- it's off by 45 or more degrees. I noticed in the settings that I could not input -77 for my longitude, it would only take 077 on the key pad. Could this be a factor? What am I doing wrong here? Thanks again.
Clear Skies, Brian
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Re: AP ASCOM driver runtime error
Steve Reilly
Considering these things aren’t that expensive and it’s needed to image I would think it wise to have a spare cable and convertor just in case. It’s the weakest link in most cases.
-Steve
From: ap-gto@... [mailto:ap-gto@...]
Sent: Saturday, June 07, 2014 5:15 PM To: ap-gto@... Subject: RE: [ap-gto] Re: AP ASCOM driver runtime error
Could be the cable or the actual device. Just because
a device has been working for two years doesn't guarantee it will continue to
work correctly forever. Most devices seem to have a one-year warranty so you
can probably figure that a certain percentage of devices will start to fail
after that.
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Re: AP ASCOM driver runtime error
Ray Gralak \(Groups\) <groups2@...>
Could be the cable or the actual device. Just because a device has been working for two years doesn't guarantee it will continue to work correctly forever. Most devices seem to have a one-year warranty so you can probably figure that a certain percentage of devices will start to fail after that.
toggle quoted messageShow quoted text
-Ray Gralak Author of Astro-Physics Command Center (APCC) Author of PEMPro: http://www.ccdware.com Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver Author of PulseGuide: http://www.pulseguide.com Author of Sigma: http://www.gralak.com/sigma
-----Original Message-----
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Re: AP ASCOM driver runtime error
Donghun
Hi Ray,
I've been using this USB/serial driver without a problem about two years. Is it more likely USB/serial cable problem or the serial cable itself? Thank you very much. Donghun
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Re: COM Port Problems!
Mlooker
toggle quoted messageShow quoted text
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Re: COM Port Problems!
The adapters I have had the best success with use FTDI chip sets. The COM port number assignments follow individual adapters, regardless of what USB port or hub they are plugged into. You can get some good FTDI-based USB-to-Serial adapters from Parallax.com -Christopher Erickson
On Jun 7, 2014 9:32 AM, "'bbrown1382@...' bbrown1382@... [ap-gto]" <ap-gto@...> wrote:
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Re: COM Port Problems!
Dave Goodyear <dave@...>
Via your post on CN, it appears u might have a generic/possible counterfeit prolific adapter. The recommended adapters are tripplite keyspans or serial adapters based on the FTDI chipset. Dave Goodyear 3109332436
On Jun 7, 2014, at 12:32 PM, "'bbrown1382@...' bbrown1382@... [ap-gto]" <ap-gto@...> wrote:
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Re: AP ASCOM driver runtime error
Ray Gralak \(Groups\) <groups2@...>
Retransmits indicate a hardware (serial port) problem. If you are using a USB/serial converter and the USB cable came loose the port might have disappeared. Sounds like the low-level USB/serial driver, if you are using one, could have caused the issue.
toggle quoted messageShow quoted text
-Ray Gralak Author of Astro-Physics Command Center (APCC) Author of PEMPro: http://www.ccdware.com Author of Astro-Physics V2 ASCOM Driver: http://www.gralak.com/apdriver Author of PulseGuide: http://www.pulseguide.com Author of Sigma: http://www.gralak.com/sigma
-----Original Message-----
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Re: AP ASCOM driver runtime error
Donghun
Hi Ray,
Here is the log archive. I'm seeing these warnings in the log. 000043 2014-06-05 23:43:54.189: Telescope: Warning : Retransmits: 1 000044 2014-06-05 23:43:54.211: Driver: Info : CommandString TX=':GZ#' 000045 2014-06-05 23:43:54.222: Telescope: Warning : Retransmits: 2 Does it mean I have a bad cable somewhere?
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