I know there has been quite a few threads about the tramron 17-50 but I couldn't really find what i was looking for (sorry if it is in there somewhere) but is the tamron 17-50 good and wide enough for follow cams on the hill? or is it just a good lens for using a tripod? And if its not good for follow cams on the hill is there another wide angle lens thats good for follow cams on the hill with nice quality for around the same price? thanks