Reply To: Bias Frames for CMOS

Forums Photometry Bias Frames for CMOS Reply To: Bias Frames for CMOS

Gary Eason

[EDIT] Previous reply was written while I was typing this] I’d also be interested in the answer. I use a Nikon D750 DSLR, which reportedly has a Sony IMX-128-(L)-AQP CMOS sensor. I usually shoot about 30 dark frames at the same exposure as my lights. I also shoot about 30 each Flats and Dark Flats. I have never bothered with Bias frames. I stack with AstroPixelProcessor which creates Masters from the calibration frames. I was just reading a long thread on Astrobin on the whole subject – in which various people announce, with what sounds like great authority … completely contradictory things.

Surely there must be a thorough scientific explanation somewhere that everyone can agree on?

  • This reply was modified 7 months, 3 weeks ago by Gary Eason.