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(@gary-neilsonicloud-com)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 3
January 15, 2021 02:56  

Hi all,

I've switched from APT to NINA mostly for the automated focussing function. The issue I'm having is the way it references the bayer matrix and the havoc its wreaking with calibration and the colours from my ASI533 OSC not displaying correctly. I've tested the data in PixInsight and it debayers correctly so it appears its the way either NINA combined APP are processing the matrix. 

Other than using PI (which I detest for everything except post processing) are there any suggestions for me to try?

Thanks

Gary.

 

 

 


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(@wvreeven)
Galaxy Admin
Joined: 2 years ago
Posts: 586
January 15, 2021 10:38  

@gary-neilsonicloud-com Hi Gary. Are you using calibration frames from APT with lights from NINA? If yes then that may very well be the issue and you may need to retake the calibration frames with NINA. If you already did do that then something else is going on. What Bayer info is stored in the fits headers of the NINA data?


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(@gary-neilsonicloud-com)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 3
January 15, 2021 15:51  

@wvreeven Hi Wouter ..... I tried both flats from APT and NINA with the same outcome. I'll do some more darks and bias through NINA to see if it makes a difference. Great idea as it never occurred to me doh!

NINA properly gives RGGB in the camera tab and the header. There are also lines for X/Y bayer pattern offsets of 0/0 in the header. On the NINA forum there is some discussion of where the reference is written in NINA (top left writing down) and read (bottom left reading up) from imaging software. So it may get the pattern reversed? 

image

I ran NINA subs last night with the RGGB expressed (rather than auto) but I doubt it will solve the problem. I'm wondering if faking the pattern in NINA to match the read reference in APP i.e change it in NINA to GBRG or something like that. I've tried forcing this in APP but it didn't correct the problem. 

I may have been a bit harsh bashing Pix 😉 .... the program is great but the convenience of APP is wonderful. I still use Pix for the final tweaking of the image using its very powerful processes so the two apps compliment (at least for me) very well :).

So a couple of things to try then are new calibration frames and fiddling with the pattern definition. I'll report back.

Cheers

Gary


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(@wvreeven)
Galaxy Admin
Joined: 2 years ago
Posts: 586
January 15, 2021 15:59  

@gary-neilsonicloud-com Hi Gary, OK we will await the results of your tests then. Fingers crossed that it goes well now 🙂


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(@gary-neilsonicloud-com)
Molecular Cloud Customer
Joined: 2 years ago
Posts: 3
January 16, 2021 23:51  

@wvreeven turns out it was the other calibration frames causing the issues. Once I had a consistent set produced in NINA then APP processed everything just fine. Now I just have to rebuild all of my library!


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(@wvreeven)
Galaxy Admin
Joined: 2 years ago
Posts: 586
January 17, 2021 13:17  

@gary-neilsonicloud-com Good to know that you were able to solve the issue. Good luck rebuilding your library. Especially with darks that can be a very time consuming task!


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