I've just taken delivery of a new Canon 7D (body only) for work. I've been recommended three lenses by the supplier who know what I'm going to be using the camera for:Of the Canon Cameras, only the T4i (so far) will autofocus for video and track motion. Its probably not going to work well for fast moving subjects, but far better than the 7D, which does not autofocus doing video ar all.
50mm F/1.2L prime lens
I'm going to be using it mostly for shooting videos in the mountains (in all weather types) in the UK, indoor/outdoor and under studio lights. I know that the lenses are just as important as the camera (or more important depending on what you have) but there seems to be a huge range in pricing for the range I've been recommended.
Unfortunately, the company I work for has a tight budget, but I don't want to get something cheaper and then find it's not going to get the best results.
I shoot a wide range of stuff, from a static shot of presenters in a podcast, to tracking someone skiing past me or with me skiing with them.
Could I ditch the prime lens and make do with the 70-200 and the 15-85?
Someone else recommended the Canon 50mm f1.8 which they said although a bit plasticy produced great results. Plus the Sigma 10-20mm F3.5 EX DC HSM as another option.
I haven't shot video with a DSLR before so please excuse my ignorance!
My budget is around £1500 (US$2300)
The T4 i also works with two lenses optimized for video. There are a few other f/2.8 lenses optimized for video as well.
I'd take the camera back and do some research before buying.