Howdy
Whats better for long exposures with lower noise? a dedicated CCD astro imager, or an IR modded, peltier cooled DSLR?
Also, can anyone gimme a guestimate as to comparative exposure times/noise leves between a DSLR and an average CCD? would a 10 mins CCD exposure have the same noise as an average 3 mins DSLR exposure?
i know its a bit vague, please indulge me
