|
Nobody has mentioned setting the GAIN correctly. Can this not help S/N?
I am pterrty sure it does on my ccd where the signal can be bosted mare rapidly than noise (well it looks that way in the graphs I have seen) - the compromise will be saturation occurs faster for the bright elements.
The comment about h'ware binning is the opposite of what I have heard - s'ware binning is not binning at all really - it is a 2x2 or 3x3 averaging. H'ware binning 2x2 will reduce the required exposure time by a factor of 4 (at the cost of resolution) for a given signal level and is used to great effect in LRGB imaging where L is 1x1 and colours are taken at 2x2.
|