I’ve been told that autofocus is unavailable if using the Nikon-fit Tamron 70-200mm f/2.8 VC USD lens with a Kenko teleconverter. Is this really true?
Kevin Hatfield, via email
Jason says... We put this to Tamron’s UK distributor, which has confirmed to us that there are no problems when using Canon-fit Tamron lenses and Kenko Teleplus teleconverters. However, Kenko’s teleconverters aren’t fully compatible with Nikon-fit Tamron lenses from the 70-200mm f/2.8 VC USD onwards. This includes all of the recently launched prime lenses such as the 85mm f/1.8 VC USD and the latest 90mm Macro, as well as recent zoom lenses including the 150-600mm VC USD. In all of these cases, autofocus and vibration compensation are disabled.
Interestingly, Kenko has just launched new 1.4x and 2.0x Teleplus HD DGX teleconverters, but only in Canon-fit. The release of the Nikon-fit versions has been delayed, which hopefully means Kenko is working on resolving this issue.