New Nikon 300mm f/2.8G VR II
Courtesy of B&H Photo, I have on loan the new Nikon 300mm f/2.8G ED VR II plus the new Nikon AF-S Teleconverter T-20E III in hand.
I’ve must wrap up some Canon material, but this new combo is on my list, and I’m also planning on checking out the Nikon 200mm f/2.0G AF-S ED-IF VR with the new 2X teleconverter as well (I’ve owned the 200VR for several years, and quite a few examples with it are already in DAP in my D3x review).
The new TC-20E III uses an aspherical element, a first for a teleconverter (to my knowledge).
Performance of the TC-20E III is reportedly excellent for a 2X converter. Of course, two stops are lost with a 2X converter, making a 300/2.8 into a 600/5.6, and a 200/2 into a 400/4: but that sounds awfully good to me if either of those two lenses can extend their range by 2X and still yield very good speed.