I have only been taking pictures for a little over a year now so any help will be great. My problem is I was trying to get the exposure balanced on a night shot of an old barn with the moon rising above it and the best i could get has a lot of noise in it. I think my iso was to high but was the only way i could have a fast enough sutter speed. iso 800 exposure 0"6 s f 2.8 exposure +1 mode "av" white balance automatic my focal point was the bright sky around the moon. Camera was a Canon eos 40d with a Sigma 105mm 2.8 lense. Thank you for any help.