Upload & Sell: On
James R wrote:
Shooting wide open with a TC can be a little problematic. Shutter slap, wind, etc can impact sharpness, besides the TC its self. IMO, you fine tune for the lens. If the TC is creating problems, leave it off and crop to get the shot you want. The D800 image allows for very liberal cropping.
There's no need to leave it off James - you can easily input two settings in AF Fine Tune (as I have just done today on both the D600 and D800 with my Sigma 120-300 and Sigma 500, both with and without a Nikon x1.4 .. and I'd add a 3rd setting for each when my x2.0 arrives).