Nikon PB-4 process_E6 Colour Doubles the focal length of

Doubles the focal length of compatible lenses

compact standard lens for film and digital Nikon F-mount SLRs

Honestly this design is kind of great and Nikon should probably still be making these

A professional full-frame ultrawide lens with minimal distortion and a fast f2

with only very minor cosmetic wear- and it runs off a pair of common AA batteries

Nikon PB-4 process_E6 Colour Doubles the focal length ofThe Nikon PB 4 is Nikon's most unique and versatile bellows, with front standard left right tilt and shift capabilities that are indispensable for making use of the limited depth of field in macrophotography. Accepts any Nikon F mount lens; the camera end is a standard F mount but practical compatibility will depend on the shape of your camera (some bulkier AF and digital cameras will require an additional extension tube not included to clear the back