NGC 1858 and friends

[Bassnut (Fred)]

Yeah well, sad but true. The ST10 is not flash in the cooling department, at all. But then I wouldnt trade 90% QE for any amount of tricky cooling

Come to think of it, thats exactly how it looks, after a few southerns, struggling up the cliff, in the pitch dark

[AlexN]

90% QE is hard to sneeze at thats for sure.. -60c delta temps wont help you catch more signal... it will just slow nose from drowning out whatever signal your camera catches... If there is one thing I miss from my ST10 its the sensitivity.. Why cant they make a larger sensor with 90% QE