I was looking at this lens as it has got good reviews all around. My only concern is the manual focus doesnt seem to be conducive with shooting video. Anyone with any experience shooting video and rolling focus with this lens it would be great to hear your opinions.
I use this lens for video a fair amount with my Nikon D3200, and before that with my D3100. I really only ever shoot video with manual focus, so the lack of auto on it didn't bother me. In fact, I appreciate using this one for pulling focus manually more than my nikkor lenses because it has a built in scale to tell you how far off the subject matter is, i.e. 1ft, 2ft, 5ft, etc... Whereas on the nikkor lenses there are no distance indicators, you have to mark them yourself with tape or if you can afford one get a follow focus.
it's a worthwhile lens. It is an APS-C only lens (not full-frame compatible), but exactly what you need with that crop factor. I love mine, first zoom I could afford (5mm seems minor in focal length, but it's an 82-108 degree field of view range). Anything wider is fish-eye.