Hello guys and girls, im hoping to get my first proper session of imaging tonight (wed 26th), and i thought id have a crack at m33, as this is conveniently placed in the sky, and my focal length plus the 2x barlow on my dslr just to acheive focus means andromida is too big for my sensor.
The issue i have is i have no idea how many subs and for what length of time i should be aiming for, preferably id like to go for lots of short subs as im not 100% confidant with the capabilities of the mount yet, will 100 at 30 seconds be enough?? is their a rule of thumb when trying to figure these numbers out?
Any help as always will be very much appreciated.
Thanks in advance,
Thomas.