Quote:
Originally Posted by Craig_
I have a 2600MM and 533MM, and have imaged previously on the 533MC (so all based on the same sensor design as the 2600MC.) Personally I've found Gain 100 to be ideal for all of these cameras under all sky conditions for all targets, and I adjust the subexposure time only based on target, sky and filter. Maybe I should try Gain 0 a bit more sometime, but I've never really seen the need as I've never been dissatisified with Gain 100.
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I’ve used Gain 0 successfully at my Dome on the South Coast ( Bortle 3 Skies ) pushing 5 min subs and I was aware of all the 2600MC spec charts between Gain 100 and Gain 0 however , I didn’t think the signal loss and noise increase would be so great using Gain 0 under LP Bortle 7/8 skies. The dB figures Chen described are substantial
I’ll be using Gain 100 in Sydney from now on and down at my Dome probably Gain 0 most of the time and Gain 100 depending on sky conditions, moon phase and target type