Michelle wrote:
> And M27 is one of the brightest objects in the sky. It looks like the
> longest exposure you can expect to take with a D10 is 2 to 4 minutes. For
> really deep imaging, you need quite a bit longer.
Some friends using the 10D have gone considerably longer (8-10 minutes) at lower ISO values and lower temperatures. But 2 to 4 minutes is plenty -- for dimmer objects or deeper images, just take a bunch of the shorter ones and stack 'em. A tried and true method that works just as well for DSLRs as it does for CCD astro-cams :)
Paul
Received on Thu Jul 29 16:26:47 2004