Kenko Teleplus Pro 300 DG TC & Sigma Lens Issues.

[donchua]

Anybody here tried using the Kenko Teleplus Pro 300 DG Teleconverter with Sigma
Telezoom especially the 50-500mm on Nikon body?
Can the 50-500mm AF with the Kenko TC?
Any compatiblity issue?
Thanks.

 

[ccplim]

I have tried it previously and have no problem with both 1.4 and 2x. And for some reason, my D100 is still able to AF with the 2x (but the speed will be slow and hunt at times).

 

[majere2sg]

Should be able to AF but will not report the correct aperture to the camera body. AF however will still be slowed down. My Kenko Teleplus 1.4x PRO300 DG does not seem to report the correct aperture when i tried with both the Nikon 50mm f1.4 and 80-200 f2.8D.