So, I've been shooting video on a Canon 7D for years, and have loved it. Now, though, someone I know is offering to sell me his used Sony a7r for a good price (I'm on a pretty tight budget...otherwise I would invest in a Sony a7s instead). My question is, is the a7r worth it? I mostly do run-and-gun, handheld shooting, but I've done some more controlled shoots as well, with tripods/sliders/etc. I edit with Premiere/After Effects and grade with Looks. While I know the still image quality of the Sony a7r is incredible, I've read mixed reviews about its video capabilities. Does anyone know how it stacks up against the old Canon 7D? Would it be a significant upgrade, or not so much?