Hey guys. I plan on purchasing a 5D Mark III soon, but there are a couple problems. One: I don't own any lenses (compatible with full-frame). Two: I'm on a budget (So can't get things like 70-200 2.8) What would you recommend. So far, I've been considering the 24-70mm 2.8 (instead of kit lens), 50mm 1.8, and 85mm 1.8. What should I add/change/remove and why? These lenses will mainly be used for video but will be taking a few stills with it. Thanks!