Kenko Extension Tube Set for Nikon F brand_Metz A nice little lens in

A nice little lens in excellent condition

Cover has some edge wear and corner creasing which extends into the first few pages

physical prints that you can see in 3D without the use of special glasses

This Teleplus MC6 2X Teleconverter doubles the focal length of most Mamiya 645 lenses

It might be worth it

Kenko Extension Tube Set for Nikon F brand_Metz A nice little lens inA set of three extension tubes for Nikon F mount: 12mm, 20mm, and 36mm. These tubes have the electronic contacts necessary to maintain autofocus and autoexposure capabilities. If you're curious about dabbling in macro work, this is an inexpensive way to get started.