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Flummoxed -- Asi2600mc First Light -- Problems with Integration

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#1 durak

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Posted 22 November 2020 - 12:11 PM

Hey everyone. I just added a OSC camera to compliment my asi1600mm pro as I recently moved to Bortle 2 (21.95) skies. The imaging session overall went well (except some minor spacing issues and my OAG prism slightly obstructing the light path). When I go to process the images via Astro Pixel Processor, everything goes as expected until I integrate. Below is a single 2-minute calibrated, registered, and normalized light:

 

single frame.JPG

 

Not the best, but for first light with a half-moon, I was happy. 

 

Now, when I integrate, the following is output:

 

Integrated.JPG

 

shocked.gif  I have redone the integration a few times, tweaking a few settings, with the same result. I suspected that the calibration frames might be to blame but then I thought if that were the case the problem would have shown up on each individual frame since they were all calibrated using the same flats, dark-flats, and darks prior to integration. 

 

Admittedly, processing has always been my weakest attribute in the whole work flow. Any thoughts? bow.gif



#2 jrcrilly

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Posted 22 November 2020 - 12:28 PM

The greenish cast is to be expected because that camera collects twice as much green light as red and blue. It isn't a problem. You can either set relative multipliers during deBayering or just correct the color balance later.


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#3 TelescopeGreg

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Posted 22 November 2020 - 04:15 PM

Look at the camera's red & blue color balance settings.  As it comes from the factory, they're set at 52 and 95, and the resulting colors are a mess.  Recommendation is to use 50 & 50.


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