Wierdly colored livestack after flat frame application asi294mc

DrBobAZ
Posts: 71
Joined: Thu Feb 25, 2021 11:41 pm

Re: Wierdly colored livestack after flat frame application asi294mc

#11

Post by DrBobAZ »

ChrisR Oz wrote: Thu Mar 31, 2022 10:52 pm Hi Bob,

I had similar effects in the beginning, with colour artefacts. The main cause ended up being a light leak in the 294MC pro, in through the rear past the cooling vents. This messed up the Darks, which then over subtract. I now take Darks at night, with the scope covered. I tried covering the camera. But it quickly gets to 100% Peltier power. Also, take care with Flat light source uniformity and do Dark Flats.

Now I have good Darks and Flat, and no residual colour effects in stacked images.
Cheers, Chris.
Hi Chris

Thanks for the info on the stray light thru the camera. I also heard that the red led on the back of the camera can also create issues with the darks and dark flats.

Clear skies,

Bob
DrBobAZ
Posts: 71
Joined: Thu Feb 25, 2021 11:41 pm

Re: Wierdly colored livestack after flat frame application asi294mc

#12

Post by DrBobAZ »

Thanks to all that responded. My flats, while not perfect, and markedly better than they were.

Bob
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