When shooting video on a 70D how do you zoom in and out of a subject smoothly? I tried doing this with the stock lens manually and it just wasn't smooth. What am I doing wrong?
I think most would use the Live View vs the view-finder. So if your subject is far out and you then touch the screen where a subject is closer - it should be a nice transition of focus.
I myself have done very little video so I hope other chime in with more experience.