Re: Wierdly colored livestack after flat frame application asi294mc
Posted: Fri Apr 01, 2022 1:42 am
Hi ChrisChrisR 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.
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