Search found 85 matches

by Dunmunro
02 Apr 2019, 08:56
Forum: Image processing and analysis
Topic: Image statistics, Min/Max values
Replies: 4
Views: 580

Re: Image statistics, Min/Max values

what exposure time are you using?

Does the ADU reach 4096 during terrestrial photography?

This article may be of some use:

http://www.stark-labs.com/craig/article ... earity.pdf
by Dunmunro
01 Apr 2019, 16:35
Forum: Image processing and analysis
Topic: Image statistics, Min/Max values
Replies: 4
Views: 580

Re: Image statistics, Min/Max values

Is the Image statistics Min/Max values ADU values? How does AstroArt calculate the values? For my Canon 1000D (12-bit) Max values never reaches the expected 2^12-1=4095 but is always arround 3500 to 3600. What is the min and background values? IIRC, Canon adds an offset which then reduces the ADU r...
by Dunmunro
30 Mar 2019, 01:06
Forum: Image processing and analysis
Topic: Preprocessing- "reject bad images" not working
Replies: 6
Views: 649

Re: Preprocessing- "reject bad images" not working

I was experimenting on a 30 image stack and I found that the value for FWHM is very sensitive while elongation is insensitive but FWHM rejection required elongation of 1.1 or greater. Elogation = 1.1 A FWHM value of 2.086 would reject 6 images A FWHM value of 2.085 would reject 7 images A FWHM value...
by Dunmunro
22 Mar 2019, 15:18
Forum: Instrumentation
Topic: Nikon D810 and D810A - two camera control
Replies: 6
Views: 683

Re: Nikon D810 and D810A - two camera control

The Nikon D800 and D800E were successfully tested with the modified Nikon 1.1 driver.

thanks Fabio.
by Dunmunro
21 Mar 2019, 17:58
Forum: Image processing and analysis
Topic: Plate-solve-goto-center just perfect !
Replies: 9
Views: 1160

Re: Plate-solve-goto-center just perfect !

It should either work correctly, goto to a wrong location, or do nothing and report an error message. If it goes to the wrong location check to make sure that you did not get a false solve on the image. I have found that occasionally the goto will be inaccurate for very short slews and then it might...
by Dunmunro
20 Mar 2019, 19:53
Forum: Instrumentation
Topic: Nikon D810 and D810A - two camera control
Replies: 6
Views: 683

Re: Nikon D810 and D810A - two camera control

Would it be possible to add D800 and D800E support to the driver?

I'd be happy to test it ASAP.

thanks
by Dunmunro
17 Mar 2019, 19:28
Forum: Image processing and analysis
Topic: Plate-solve-goto-center just perfect !
Replies: 9
Views: 1160

Re: Plate-solve-goto-center just perfect !

Hello Brujo, Never dared to try to center this way. Will try it out next time. Thanks for sharing! I have also been using this feature successfully. I am now imaging remotely using Chrome Remote Desktop to control two observatory computers, each controlling a mount, camera, autoguider and focuser: ...
by Dunmunro
16 Mar 2019, 18:49
Forum: Instrumentation
Topic: Wish List - Star Atlas and platesolve data base
Replies: 3
Views: 525

Re: Wish List - Star Atlas and platesolve data base

Hello, adding figures to the Atlas can be done easily. As you wrote, platesolving the guider may not work, and in any case it will not help to reach the guide star, since the guide camera will be moved blindly by hand. By the way: since an OAG just rotates around the main field, maybe the best info...
by Dunmunro
16 Mar 2019, 16:57
Forum: General
Topic: How to reopen a minimized window?
Replies: 24
Views: 2345

Re: How to reopen a minimized window?

Thanks for all of the suggestions, Duncan. I tried them and even used Windows 10 software compatability test to try and fix the problem. The test reformatted windows to Windows 8 but the result was exactly the same. No taskbar on the bottom so no ability to find minimized windows. So, I am just goi...
by Dunmunro
15 Mar 2019, 20:34
Forum: Instrumentation
Topic: Wish List - Star Atlas and platesolve data base
Replies: 3
Views: 525

Wish List - Star Atlas and platesolve data base

Currently the camera frame is shown in the Star Atlas. Would it be possible to show the guide camera and imaging camera frames simultaneously in the Star Atlas? I intend to use an OAG in the future and it would be very handy to have the both the guide camera and imaging camera frames visible to aid ...