Quote Originally Posted by btaylor View Post
I'm using the BH30 at the moment and it supports my 5D3 with 70-200 f/2.8L IS II really well. It's a surprisingly robust little ballhead.
+1. Although, I did find that the BH-30 settles a little (although it doesn't drift after that) with the 70-300L mounted via a body plate (I subsequently got the tripod ring for it). But with a more balanced load, it's fine (even with an extended 100-400L or 28-300L).