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15th Feb 2024: Astro Pixel Processor 2.0.0-beta29 released - macOS native File Chooser, macOS CMD-Q fixed, read-only Fits on network fixed and other bug fixes

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serious problem with picture corners with QHY 294C Pro images

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(@dennis75)
White Dwarf
Joined: 4 years ago
Posts: 8
Topic starter  

Hi!

I have a problem with the stacked pictures with my QHY 294C Pro camera. The stacked pictures look like this:

2022-04-04_144157.jpg
 
This is a big problem when I combine multiple sessions with slightly different camera angles. Also a mosaic stack will be impossible I suppose.
When I open a single light frame of the camera there is only a black margin.
But when I open a light frame in fits liberator and stretch it the corners look like this:
 
2022-04-04_144350.jpg
I have absolutely no idea if this is normal for this camera.
Is there a possibility of cropping all the light frames before stacking?
Or any other suggestion?
 
Thanks in advance and Best Regards
Dennis

   
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(@dennis75)
White Dwarf
Joined: 4 years ago
Posts: 8
Topic starter  

Update: I have compared some of the lightg frames of the camera and found out that the exposed pixels on the corners are the same in each light frame. So normaly I would think APP should recognize them and eliminate them.

So what causes this strange frame around the stack?


   
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(@vincent-mod)
Universe Admin
Joined: 7 years ago
Posts: 5707
 

It is a bit strange indeed, would you mind uploading like 10 lights, 10 darks, 10 flats, etc. to our server to check out?


   
Dennis Mihm reacted
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(@dennis75)
White Dwarf
Joined: 4 years ago
Posts: 8
Topic starter  

@vincent-mod 

Done...


   
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