Quote:
Originally Posted by Amaranthus
Dithering will deal effectively with hot pixels, but not dark current (and the noise associated with this unwanted signal). As noted above, if you have a low-noise sensor coupled with deep cooling, then dark subtraction is probably not worth it. But for uncooled DSLRs, for instance, it's a vital calibration.
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I'm not sure what dithering is. Is it moving the scope by small amounts every few frames?
My camera is an unmodified Nikon D3100, and chances are, I won't be modifying it anytime soon..