The Nikon PB-5 is a well-made macro bellows with a rigid two-rail design. 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 of the rail). In excellent condition overall, except for an ID number inscribed into the top on the rear standard, which was the style at the time, for no discernible reason. Includes the Nikon PS-5 slide duplicator attachment- also engraved- which can be used with a digital camera and compatible lens (not included) to digitize film, which is a pretty nice bonus.