The extensiveness of this review can only be matched by those of Dpreview. But these guys also add a nice, comprehensive video section too. I'd say its One of the top 5 reviews of the 7D: "The Canon 7D essentially functions under automatic control in every mode except Manual mode. In all the other modes shutter speed, aperture, and ISO are set automatically, although exposure can be adjusted manually if you wish. The camera does not have a continual autofocus feature in video mode, so you do have to press the shutter button down halfway (or press the focus button on the back of the camera) in order to focus your image automatically. Autofocus takes a good deal of time (often 1-2 seconds, depending on the lens) and makes quite a bit of noise."   Link