I know this is a digital forum but from what I have read of film, it seems to be a better choice for a 5-6 hour shot based on no sensor to heat up. No I dont have experience with this, so I could be completely wrong.


If film would be better it would give me a reason to get the EOS 1V and try out some 5-6 hour exposures [].


But for an adapter for the 40D, I found a website with some info on that http://www.astronomiser.co.uk/canonpower.htm


Thank


Joel