any one know whats the best wireless controller to use with a 7d,i hear the vello's shutter boss rcw-c2 is a good one,and you can use it wired or not,the shutter release is a two faze one so you can auto focus and shoot from about 25' away ! not all controllers do this,i though i would get some feed back,before i spend $100.00 on one! i know its a bit less money then the canon wireless remote,any one have thought's on this,what do you use and why! thanks.

