Yes we did get a second one. Amy likes the 400mm and uses it all the time now so we decided to each have one. Her main lens was the 400mm DO II. After using my 400mm on a few outings she really like the balance and performance over the DO II. It is my favorite and most use lens so I will most likely be selling the 600mm in a bit. The R5 push us in this direction. Now with the 45MP camera I really do not need the reach of the 600mm with the 2x and I prefer the 400mm over the 600mm in the 800mm range due to the shorter size and MFD.
I agree. The Mkiii teles rock with the mkiii TCs. I was getting sharp handheld shots with the 400+2X TC on 1dxii. I can imagine the pleasure you must be feeling in shooting with IBIS enabled body.





















