I went out this morning and took a few images with my new Nikon 1.7 Tele converter .

Im still in the learning mode with its as far as what I can achieve....the wildlife where few and far between this morning too ..

so far im well happy with the combo..Af is still pretty fast..and Id say as fast as my old Sigma 70-200 HSM II without a TC !!...its not to unwieldy to use at the long end {340MM}..but im glad I have VR on the lens....makes some shots possible that would otherwise be out of the question