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Re: Problem controlling GM811G with latest ASIAIR Plus

 

>>>The image attached tells the story.

I must be missing the story then? :) That doesn't really say anything other than the mount and asiair?were in agreement to within 1 arcsecond of the slew and app. That is?probably a pixel or two (not sure your image scale).? If that's the case, the mount slewed to where AAP told it to go. one arcsecond is not going to make a difference to plate solve. a handful of degrees or more would cause issues.

Have you looked at the ASIAir log to determine what exactly the plate solve error?was? That log would really be more helpful here.



On Fri, Aug 19, 2022 at 3:23 PM Glenn <glancey3@...> wrote:
Hi Brian,

The image attached tells the story. ASIAIR's auto-centering fails to plate-solve and never centers the object in the FOV. Notice the coordinate mismatch. It's just 1 arc-second difference, but that seems to be enough to throw off auto-centering. This happens every time I perform a GOTO, no matter the target object.?

Glenn



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Re: Problem controlling GM811G with latest ASIAIR Plus

 

Hi Brian,

The image attached tells the story. ASIAIR's auto-centering fails to plate-solve and never centers the object in the FOV. Notice the coordinate mismatch. It's just 1 arc-second difference, but that seems to be enough to throw off auto-centering. This happens every time I perform a GOTO, no matter the target object.?

Glenn
Re: Any one using an ST-i for guider with Losmandy G2 conversation

 

Thanks Mike and I apologize for not getting back too you sooner. ?I have tried it both ways Serial from STi to the G2 and USB B port cable and neither seem to lock the guide scope to the mount as best as I can tell.

My question is/was basically do I need to have both ports active (cables to the G2 and Portable computer) or just the USB cable to the portable.

I hope it is clear what i am writing. ??

Sincerely,
Doug
Re: Any one using an ST-i for guider with Losmandy G2 conversation

 

Hi Paul,
First off thank you for reply incase I did not notice it.

I am back at trying to the Sti to guide the Losmandy G11/g2 as it once i click on the star noting happens and quickly the star is moving out of the box as if the software is not working. ?I am wondering though do I need to have the cable to the desktop pc and a cable from the STi to the Losmany G2 panel or should on the one cable is sufficient? ? Just cannot get PHP2 to grab star either selected by me or letting the program select the guide star. ?Also I do not the mount is on line as PHD2 sees it and goes green on the display.

Sincerely,
Doug Askew
4mp2i.com
Re: Resetting spring-loaded worm

 

On Fri, Aug 19, 2022 at 11:45 AM, Daniel wrote:
Hi Brian,

Thank you for your answer. I have tried to adjust the DEC SLW starting with resetting the spring length to about 8.4mm . What I have found is that the secondary, i.e. back-off screw, does not seem to have any effect, that is, regardless of its position the resistance offered by the spur gears is minimal. If you want the gears offering resistance you have to screw on the main spring screw and in any case the back-off screw does not seem to have any effect. I have screwed and unscrewed the back-off screw and its regulation effect is zero. Is anything wrong with my DEC SLW ???? ?

Best wishes,
Daniel
If your back off screw doesn't seem to be working it could be that the bottom cap screws are just a bit too snug to let the OPW move. If they are just a little bit too snug they lock the OPW into position and the worm can't float on the worm gear.?
?
--

Chip Louie Chief Daydreamer Imagination Hardware?

? ?Astropheric Weather Forecast - South Pasadena, CA?
Re: Resetting spring-loaded worm

 

Daniel - please use the support ticket you have open and send a video

Thanks

Brian

On Fri, Aug 19, 2022 at 11:58 AM Daniel <daniel.rdrm12@...> wrote:
If I unscrew the back-off screw I should see that the gears offer great resistance as a consequence of the worm getting pushed to the gear, right?? Well, this is not the case. If I unscrew the back-off screw the gears continue to spin freely.?

Best regards,
Daniel



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Re: Resetting spring-loaded worm

 

If I unscrew the back-off screw I should see that the gears offer great resistance as a consequence of the worm getting pushed to the gear, right?? Well, this is not the case. If I unscrew the back-off screw the gears continue to spin freely.?

Best regards,
Daniel
Re: Resetting spring-loaded worm

 

Daniel

How are you measuring this effect??

It's impossible for the backoff screw to have no effect if you have the spring tension set correctly - or at least I've never encountered a situation where that's the case

if you loosen the backoff?screw completely?

This is the procedure to check/adjust the spring loaded worm:

?

If you continue to have questions about this, please use the open support case you have with us. I will probably ask you for a video demonstrating what you see

On Fri, Aug 19, 2022 at 11:46 AM Daniel <daniel.rdrm12@...> wrote:
Hi Brian,

Thank you for your answer. I have tried to adjust the DEC SLW starting with resetting the spring length to about 8.4mm . What I have found is that the secondary, i.e. back-off screw, does not seem to have any effect, that is, regardless of its position the resistance offered by the spur gears is minimal. If you want the gears offering resistance you have to screw on the main spring screw and in any case the back-off screw does not seem to have any effect. I have screwed and unscrewed the back-off screw and its regulation effect is zero. Is anything wrong with my DEC SLW ???? ?

Best wishes,
Daniel



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Re: Resetting spring-loaded worm

 

Hi Brian,

Thank you for your answer. I have tried to adjust the DEC SLW starting with resetting the spring length to about 8.4mm . What I have found is that the secondary, i.e. back-off screw, does not seem to have any effect, that is, regardless of its position the resistance offered by the spur gears is minimal. If you want the gears offering resistance you have to screw on the main spring screw and in any case the back-off screw does not seem to have any effect. I have screwed and unscrewed the back-off screw and its regulation effect is zero. Is anything wrong with my DEC SLW ???? ?

Best wishes,
Daniel
Re: indi driver update.

 

Hi, Jamie

Is this new version included in the latest ASIAIR firmware update? ever since I updated my ASIAIR Plus firmware, GOTOs and auto-centering are consistently failing for me with my GM811G mount.

If it's not included, is there any way to update the driver in ASIAIR? There is no root access to the ASIAIR so I can't simply ssh into it and update the Indi drivers.

Glenn
Re: Problem controlling GM811G with latest ASIAIR Plus

 

Glenn I haven't had any issues with the Pro and latest firmware

That's not much detail to go on - do you have anything more specific regarding the errors??

On Fri, Aug 19, 2022 at 10:32 AM Glenn <glancey3@...> wrote:
Ever since I updated the firmware on my ASIAIR Plus to the latest version, I keep getting pointing errors and auto-centering failures on my GOTOs. Is there anyone else experiencing similar problems controlling their mount?



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Problem controlling GM811G with latest ASIAIR Plus

 

Ever since I updated the firmware on my ASIAIR Plus to the latest version, I keep getting pointing errors and auto-centering failures on my GOTOs. Is there anyone else experiencing similar problems controlling their mount?
Re: Resetting spring-loaded worm

 

Yes, both axes have the same tension measurements leaving the factory


On Fri, Aug 19, 2022 at 9:50 AM Daniel <daniel.rdrm12@...> wrote:
Sorry to bump up an old thread, but I would like to confirm if the 1/3" (8.5mm) spring length applies for both axes. In my mount RA came with the factory 8.5mm but DEC is at 6.7 mm and I suspect that this is some of the tweakings made for the vendor to eliminate play in DEC (RA was also "adjusted" but touching only the back-off secondary screw).? The fact is that I have seen recently DEC Heavy Duty Tr messages that I think are caused by overtightening.

Best regards,
Daniel



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Re: Resetting spring-loaded worm

 

Sorry to bump up an old thread, but I would like to confirm if the 1/3" (8.5mm) spring length applies for both axes. In my mount RA came with the factory 8.5mm but DEC is at 6.7 mm and I suspect that this is some of the tweakings made for the vendor to eliminate play in DEC (RA was also "adjusted" but touching only the back-off secondary screw).? The fact is that I have seen recently DEC Heavy Duty Tr messages that I think are caused by overtightening.

Best regards,
Daniel
Re: Usability Question--Update

 

¿ªÔÆÌåÓý

For the ¡°faint fuzzies¡±, I usually sync on a near by star and then go to them.? HTH¡¯s

Bob R.

?

From: [email protected] [mailto:[email protected]] On Behalf Of Mark de Regt
Sent: Friday, August 19, 2022 6:16 AM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

Thanks, John!

?

When we moved to our present house in 2001, the Milky Way was quite prominent.? But the intervening 21 years have not been kind to our sky, as the Seattle area has boomed, and the light pollution with it.? If you know where to look, you can see a faint wisp of the Milky way on a moonless night, but that¡¯s all.

?

My viewing scope is a very good scope, and it is fun to take it out once in a while.? I can¡¯t see much in our light-polluted soup, but it¡¯s always fun to see things like Alberio, good globular clusters, M57 and M27.? It does me good to renew my acquaintances with them.? But my finder scope, which is very nice, won¡¯t pick up most (if any) globulars, and certainly won¡¯t show a planetary nebula.

?

If I ultimately have to sway eyepieces for a wider FOV ¡°finder,¡± that¡¯s not a tragedy.? But I do want to get this thing working as well as I can.? I¡¯m hoping that Brian¡¯s catch on my mapping error helps.

?

Mark

?

From: [email protected] <[email protected]> On Behalf Of John Kmetz
Sent: Thursday, August 18, 2022 11:45 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

On Thu, Aug 18, 2022 at 12:03 PM, Mark de Regt wrote:

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark,

You have some nice quality eyepieces there. And a 9x50 finder is pretty good for locating stuff too. I would think that most Messier objects would be visible in that to some degree, depending on sky conditions and local light pollution. But the target should be off less of an angular separation in the FOV than the main scope, which is why everyone has a finder. A lower power finder can also help, and I used to get rid of those straight through finders that came with the scope for a right angle one, which is easier on the eyes and the back. But if you have a finder with a removable eyepiece, an LP filter might help there.?

My last LX200 was circa 2001, and the accuracy wasn't that great for me, though they probably improved their tech by now. But lower power eyepieces and finders should aid your efforts. Before 2000, I had no GoTo, and would find most of the M objects by star hopping, and art that is now getting lost. S&T and Astronomy Magazine used to publish the hopping diagrams every month, bright star to asterism to cluster, etc. until you got to target. Those days were a real challenge.

But your eyepieces plus a large SCT like that should be giving a nice visual experience.

Good luck.

John
?
--
_____________________________________________________________________________________________________________________________________________________________________________

Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user



This email has been checked for viruses by Avast antivirus software.


Re: Usability Question--Update

 

¿ªÔÆÌåÓý

Thanks, John!

?

When we moved to our present house in 2001, the Milky Way was quite prominent.? But the intervening 21 years have not been kind to our sky, as the Seattle area has boomed, and the light pollution with it.? If you know where to look, you can see a faint wisp of the Milky way on a moonless night, but that¡¯s all.

?

My viewing scope is a very good scope, and it is fun to take it out once in a while.? I can¡¯t see much in our light-polluted soup, but it¡¯s always fun to see things like Alberio, good globular clusters, M57 and M27.? It does me good to renew my acquaintances with them.? But my finder scope, which is very nice, won¡¯t pick up most (if any) globulars, and certainly won¡¯t show a planetary nebula.

?

If I ultimately have to sway eyepieces for a wider FOV ¡°finder,¡± that¡¯s not a tragedy.? But I do want to get this thing working as well as I can.? I¡¯m hoping that Brian¡¯s catch on my mapping error helps.

?

Mark

?

From: [email protected] <[email protected]> On Behalf Of John Kmetz
Sent: Thursday, August 18, 2022 11:45 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

On Thu, Aug 18, 2022 at 12:03 PM, Mark de Regt wrote:

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark,

You have some nice quality eyepieces there. And a 9x50 finder is pretty good for locating stuff too. I would think that most Messier objects would be visible in that to some degree, depending on sky conditions and local light pollution. But the target should be off less of an angular separation in the FOV than the main scope, which is why everyone has a finder. A lower power finder can also help, and I used to get rid of those straight through finders that came with the scope for a right angle one, which is easier on the eyes and the back. But if you have a finder with a removable eyepiece, an LP filter might help there.?

My last LX200 was circa 2001, and the accuracy wasn't that great for me, though they probably improved their tech by now. But lower power eyepieces and finders should aid your efforts. Before 2000, I had no GoTo, and would find most of the M objects by star hopping, and art that is now getting lost. S&T and Astronomy Magazine used to publish the hopping diagrams every month, bright star to asterism to cluster, etc. until you got to target. Those days were a real challenge.

But your eyepieces plus a large SCT like that should be giving a nice visual experience.

Good luck.

John
?
--
_____________________________________________________________________________________________________________________________________________________________________________

Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user

Re: Usability Question--Update

 

On Thu, Aug 18, 2022 at 12:03 PM, Mark de Regt wrote:

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark,

You have some nice quality eyepieces there. And a 9x50 finder is pretty good for locating stuff too. I would think that most Messier objects would be visible in that to some degree, depending on sky conditions and local light pollution. But the target should be off less of an angular separation in the FOV than the main scope, which is why everyone has a finder. A lower power finder can also help, and I used to get rid of those straight through finders that came with the scope for a right angle one, which is easier on the eyes and the back. But if you have a finder with a removable eyepiece, an LP filter might help there.?

My last LX200 was circa 2001, and the accuracy wasn't that great for me, though they probably improved their tech by now. But lower power eyepieces and finders should aid your efforts. Before 2000, I had no GoTo, and would find most of the M objects by star hopping, and art that is now getting lost. S&T and Astronomy Magazine used to publish the hopping diagrams every month, bright star to asterism to cluster, etc. until you got to target. Those days were a real challenge.

But your eyepieces plus a large SCT like that should be giving a nice visual experience.

Good luck.

John
?
--
_____________________________________________________________________________________________________________________________________________________________________________

Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user
Re: Usability Question--Update

 

>>> I¡¯ll try your suggestion on model building.

please do Mark.

I think it's a little more than just a suggestion.?

I think you were using it incorrectly (well, I *know* you were using it incorrectly based on your steps) and what I described is how the Gemini 2 works





On Thu, Aug 18, 2022 at 10:28 AM Mark de Regt <deregt@...> wrote:

As far as I know, I have tried everything suggested before yesterday (it was cloudy last night; this is Seattle), other than things which involve taking the mount apart.? When I have a clear night, I¡¯ll try your suggestion on model building.

?

From: [email protected] <[email protected]> On Behalf Of Brian Valente
Sent: Thursday, August 18, 2022 10:19 AM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

>>> As much as they charge for this mount/electronics, it should be able to do as well, IMO.?

?

?

? Have you had a chance to try the recommendations I posted earlier?

?

From what I saw, you weren't really using the model building as Gemini works.?

?

Everyone is trying to help, which is great. It's worth reviewing all those things even if it's the 'ol 'back to basics' kinds of questions;

?

?

?

?

?

?

On Thu, Aug 18, 2022 at 9:03 AM Mark de Regt <deregt@...> wrote:

John,

?

Thanks for this.

?

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark

?

From: [email protected] <[email protected]> On Behalf Of John Kmetz
Sent: Wednesday, August 17, 2022 6:30 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

Mark,

A C925 Edge HD is what I use, but I most often have it coupled with a 0.7X Celestron Focal Reducer for wider field as faster optics. While I have heard many reports of mirror flop with this scope, I really haven't seen it too much with mine, or if it's there it has not caused me much of a problem.

When I started with this scope, I bought a 17mm and a 23mm Luminos eyepieces which are enough for my visual needs. But I now always have a camera on the back and rarely use them. But for finding objects during visual, I still have a cheapo 50mm Plossl (off brand) that I use for finding stuff. Then switching to a higher power eyepiece is what to do after centering the object.?

But what are you seeing in your finder scope? Are you still off target even with that? If you are slewing around the sky at F10 with 17mm eyepiece, expecting each GoTo to be in its FOV is asking a bit much, IMHO.

John
--
_____________________________________________________________________________________________________________________________________________________________________________

Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user


?

--

Brian?

?

?

?

Brian Valente

astro portfolio?

portfolio

astrobin?



--
Brian?



Brian Valente
astro portfolio?
portfolio
astrobin?
Re: Usability Question--Update

 

¿ªÔÆÌåÓý

As far as I know, I have tried everything suggested before yesterday (it was cloudy last night; this is Seattle), other than things which involve taking the mount apart.? When I have a clear night, I¡¯ll try your suggestion on model building.

?

From: [email protected] <[email protected]> On Behalf Of Brian Valente
Sent: Thursday, August 18, 2022 10:19 AM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

>>> As much as they charge for this mount/electronics, it should be able to do as well, IMO.?

?

?

? Have you had a chance to try the recommendations I posted earlier?

?

From what I saw, you weren't really using the model building as Gemini works.?

?

Everyone is trying to help, which is great. It's worth reviewing all those things even if it's the 'ol 'back to basics' kinds of questions;

?

?

?

?

?

?

On Thu, Aug 18, 2022 at 9:03 AM Mark de Regt <deregt@...> wrote:

John,

?

Thanks for this.

?

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark

?

From: [email protected] <[email protected]> On Behalf Of John Kmetz
Sent: Wednesday, August 17, 2022 6:30 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

Mark,

A C925 Edge HD is what I use, but I most often have it coupled with a 0.7X Celestron Focal Reducer for wider field as faster optics. While I have heard many reports of mirror flop with this scope, I really haven't seen it too much with mine, or if it's there it has not caused me much of a problem.

When I started with this scope, I bought a 17mm and a 23mm Luminos eyepieces which are enough for my visual needs. But I now always have a camera on the back and rarely use them. But for finding objects during visual, I still have a cheapo 50mm Plossl (off brand) that I use for finding stuff. Then switching to a higher power eyepiece is what to do after centering the object.?

But what are you seeing in your finder scope? Are you still off target even with that? If you are slewing around the sky at F10 with 17mm eyepiece, expecting each GoTo to be in its FOV is asking a bit much, IMHO.

John
--
_____________________________________________________________________________________________________________________________________________________________________________

Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user


?

--

Brian?

?

?

?

Brian Valente

astro portfolio?

portfolio

astrobin?
Re: Usability Question--Update

 

>>> As much as they charge for this mount/electronics, it should be able to do as well, IMO.?


? Have you had a chance to try the recommendations I posted earlier?

From what I saw, you weren't really using the model building as Gemini works.?

Everyone is trying to help, which is great. It's worth reviewing all those things even if it's the 'ol 'back to basics' kinds of questions;






On Thu, Aug 18, 2022 at 9:03 AM Mark de Regt <deregt@...> wrote:

John,

?

Thanks for this.

?

I have two finders:? A 9x50 right angle finder (with illuminated crosshairs), and a Telrad.? Both are aligned perfectly with the eyepiece.? So both are off the same amount as on my eyepiece.?

?

I¡¯m not sure why people keep asking about my finder(s); when a faint fuzzy is off the eyepiece FOV, it doesn¡¯t matter what I have for a finder scope, since no finder I¡¯ve ever used will show, e.g., M51.

?

Yes, I can keep swapping eyepieces; I have a full range of 82¡ã, high-quality eyepieces.? And I could use the reducer I bought with the scope. But I guess I¡¯m just spoiled by my old Meade scopes which (whether in Alt-Az or polar mode) would have every single object centered on any eyepiece (even on a KAF-401 chip, which is tiny¡ªunder 10 arcminutes diagonal, as I used it on my RCX400)), first time and every time.? As much as they charge for this mount/electronics, it should be able to do as well, IMO.

?

Mark

?

From: [email protected] <[email protected]> On Behalf Of John Kmetz
Sent: Wednesday, August 17, 2022 6:30 PM
To: [email protected]
Subject: Re: [Losmandy_users_io] Usability Question--Update

?

Mark,

A C925 Edge HD is what I use, but I most often have it coupled with a 0.7X Celestron Focal Reducer for wider field as faster optics. While I have heard many reports of mirror flop with this scope, I really haven't seen it too much with mine, or if it's there it has not caused me much of a problem.

When I started with this scope, I bought a 17mm and a 23mm Luminos eyepieces which are enough for my visual needs. But I now always have a camera on the back and rarely use them. But for finding objects during visual, I still have a cheapo 50mm Plossl (off brand) that I use for finding stuff. Then switching to a higher power eyepiece is what to do after centering the object.?

But what are you seeing in your finder scope? Are you still off target even with that? If you are slewing around the sky at F10 with 17mm eyepiece, expecting each GoTo to be in its FOV is asking a bit much, IMHO.

John
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Losmandy G11G2 on pier; SkyShed design roll-off observatory; ZWO ASI2600MM-P; ZWO ASI071MC; Sky-Watcher Esprit 100 ED; Celestron C925 Edge HD with 0.7XFR, William Optics Zenithstar 61 APO; PHD2, Sequence Generator Pro and PixInsight user



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Brian?



Brian Valente
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