« Last post by mackguyver on Today at 09:44:47 AM »
It makes a difference on the 50L and the big whites as well, but to me, is most noticeable on the 85L.Actually it's quite slow on a 5dmk3 body also. Super lens on a 1dx body, which focuses (drives the 85/1.2 II Ultra Sonic Motor) much faster because of the 11.1v battery compared to 5d's 7.2volt battery. I did some really simple focussing on some stuff when i received my 1dx and in my test setup (switching between targets at near and far distant) it was like 1.3 seconds on 1dx compared to 2 seconds on 5dmk3.
Great lens anyway!
Nice to know! Never realised that was the case as I thought it had more to do with the autofocus system itself.