« on: November 28, 2013, 02:50:46 PM »
There ARE times when the 100-400 is invaluable. During the America Cup Races recently I use the 100-400 with the 1.4 and the 2.0 TCs to get 1120mm with surprisingly good result at over a mile away. So keep it if you can, at it's price it is irreplaceable with anything else.
Have you compared the 100-400mm + 2xTC with the 300mm f/2.8 II with the 2xTC? Would the OP want to use the 100-400mm with the 2xTC if he has the 300?