Quote Originally Posted by Tim


You mentioned using primes, but one thing I haven't heard yet is if you can zoom while filming, because all the sample videos I've seen never did this, maybe it's too hard, or maybe the focus can't cope with zooming, I've just always wondered.
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You can do this, but it's hard to do for at least three reasons. First, it's hard to turn the zoom smoothly and slowly like you would with a motorized zoom. Second, you're likely to make the camera shake if you try, and that will look bad. Third, the zoom lenses for still photography are probably not parfocal; correct focus at one focal length will be wrong for another focal length. Net result: jerky, bumpy and out-of-focus video...I'll pass.