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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

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Update on the 2.0.0 release & the full manual

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Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

serious problem with picture corners with QHY 294C Pro images

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(@dennis75)
White Dwarf
Joined: 6 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: 6 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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(@Anonymous 174)
Joined: 9 years ago
Posts: 5702
 

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: 6 years ago
Posts: 8
Topic starter  

@vincent-mod 

Done...



   
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