With a cmos camera actually in your hand it's possible to adjust the ISO (gain) to match the circumstances. The use of unity gain as the default setting on these remote cameras is a necessity, although I note that requests to change this might be considered.
I've seen much when it comes to astrophotography supporting the case for lots of short exposures. I can appreciate that using this approach will in many cases be the way to go. However, I would appreciate a bit of guidance on this. It It is in the interest of no-one to place a booking for say 960 x 15 seconds exposures, 4 hours total, to save you the math. Options might be 240 x 60 seconds or 48 x 300 seconds.
Is it the case that one exposure time could be used for everything outside of the solar system, or would it be better to have a very small range to choose from? In the latter case could someone suggest a recommended time for say 3 types of target. In simple terms, bright, say m42, average, if there is such a thing, and dim. Maybe the Crescent or Bubble nebulae would qualify as average and dark nebula as possible dim. I appreciate that this is not an ideal solution but from my personal point of view it would assist greatly.
To whoever replies thanks for your great words of wisdom.
Cheers,
Ray