Kenko Extension Tube Set for Nikon F brand_Metz the Photax III is a

the Photax III is a simple machine with a fixed-focus Boyer lens

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

Designed for Exakta-mount cameras or adapters

The Breakthrough Photography X4C CPL is a circular polarizing filter with a thin

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

Kenko Extension Tube Set for Nikon F brand_Metz the Photax III is aA 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.