Quote:
Originally Posted by strongmanmike
I'm so lazy I don't do bias, super bias, nuttin, not even darks...laaaazeeee 
....sorry 
but I do flats!  
Mike |
And that is perfectly okay when you have big...huh...pixels
and you end up with stacking 10-20 long subs, but most of us with small...huh...pixels
, doing many short subs, can in some circumstances benefit from subtracting bias.
And now some folks are taking about stacking hundreds of very short subs, so I would imagine that subtracting a bias would be essential, otherwise fixed camera patterns may show up with aggressive stretching due to a low SNR in a single short sub.