Nikon AF Teleconverter TC-16A lens mount_Leica R 4G AF Nikkor is a

4G AF Nikkor is a modern

so don’t get any ideas

lightweight ultrawide lens for Canon EF-S mount digital SLR cameras

It's also an excellent short telephoto lens in general

This helicoid extension tube lets you seamlessly adjust magnification for close-up work with your Pentax 67 and nearly any Pentax 67 lens (not included)

Nikon AF Teleconverter TC-16A lens mount_Leica R 4G AF Nikkor is aThe unique TC 16A teleconverter gives autofocus capabilities to many F mount manual focus lenses! When used on a suitable camera body, this teleconverter dials in focus automatically after manually focusing to the general distance. Compatibility is limited, however: Nikon recommends the TC 16A only with the F 501 N2020, but several other bodies including the F4 and F N90 work as well. Please confirm compatibility with your intended camera body.