Astroart Forum

Having just returned to astro imaging after being out of hobby for 8 years, I am trying to pick up where I left off, and to remember the things that I have forgotten.

Back in the day, I used AA3, AA4, and lastly AA5 I have now upgraded to AA8.

Having moved on from any many years of using CCD cameras, I have now moved to using CMOS. I am told that accurate dark frame are very critical in removing the amp glow/starburst inherent in CMOS cameras, and am advised that a Master Dark Frame must be created from unscaled dark frames.

Can I stack dark frames while keeping then 'as is', unscaled in AA8.

As long as the darks and lights have the same exposure time you will be fine. To scale you would need to take darks with a longer exposure then your lights and a bias frame. There is a separate section in preprocessing that handles dark scaling, just don't use that feature.

Thanks Iver. "To be fore warned, is to be fore armed"