Got a dumb question but wondering what difference it makes as to duration between subs when imaging DSO's with a dSLR? So for example if I was to image an object 20 subs @ 2min / sub, what's the interval between subs, do you wait a certain duration in seconds or just keep snapping with little to no interval between exposures? Apart from the additional time it adds to a session are there any implications for having a long duration between shots?
