I don't use a Sony sensor, but even if I did, I would calibrate with bias, darks, and flats regardless.[/QUOTE]
These sensors are so low noise that when you do a dark subtract you will visually see the increase in noise. It seems counterintuitive but that's what happens.
But a master bias subtract seems like a good thing.
I sometimes do full calibration and sometimes not. It depends more on whether I have dust donuts, vignetting or if I took a longer exposure.
Greg.
|