Upload & Sell: On
Are we parroting Nikon elitism, or speaking from personal usage There was a thorough study a few years back
(some German guy IIRC) and he tested all the 1.4x TCs. The Kenko TelePlus Pro 300 DG was as sharp as the Nikon
in the center and actually a hair faster to AF than the Nikon The only knock against it was it turned out to be a
little softer in the corners, on FX. This mirrors my experience on a couple of cough decent primes 200 f2/300 2.8
with the D3/D700. I'd use one again in a heartbeat, and seriously doubt you could tell the difference.