The one major thing over my Canon 40D... ISO up to 12,800.
Most of you have noticed that I love shooting lowlight photos (here, here and here).
But DAMN. You could almost shoot in total darkness with ISO 12,800. Assuming of course it's noise free up to that ISO. I mean, I don't even use my 3200 ISO much on my Canon 40D because it's so noisy.
Almost makes me regret getting the 50mm/f1.2L...
Ok, no that's not true I love that lens, but DAMN... that's a sexy ISO range. LOL
Good thing I'm trying to expand using off camera flashes (here, here and here). Or I'd be seriously considering giving up my first borne. ;-)
Can't wait to see what's in store for the 5D Mark II if this is what the 50D looks like...