Discovered I didn't have a shot of the Tarantula nebula with my
recently acquired QHY10C OSC camera so grabbed 1.4hrs (21X240sec)
worth to get a feel for exposure timing with it. Worked out well
although as usual, more hours would be better.
Large version here ... WARNING it's 29MB (Found I couldn't squeeze
it down much as the stars got too fuzzy!!)
http://www.astrobin.com/31187/
cheers
Stephen