I've been renting a T2I for the past three weekends to shoot b-roll at weddings. Now that I'm satisfied with the cams capabilities, lenses, etc., I'm in the market for a T3i or 60D. To adjust the aperture on the T2i or T3i you press and hold A/V and turn the wheel simultaneously. This works while recording. I've read that it is not possible to adjust the f-stop or even ISO while recording video with the 60D. Is this true?
No its not true...
You CAN adjust f-stop or ISO while recording with the 60D...