Nikon BR-2A Reversing Ring Quebec Bill 29 the new lens system uses

the new lens system uses two aspherical lenses most effectively to minimize both distortion and chromatic aberrations

This lens is designed with high-performance glass lens elements throughout

providing isolation from external physical factors that may cause unwanted rumble and vibrations in the microphone

and for photographing subjects that require good depth of field and fast shutter speeds with maximum image quality for the film speed

If you have sensitive instruments

Nikon BR-2A Reversing Ring Quebec Bill 29 the new lens system usesFits between the Nikon AF SLR cameras and lenses to enable reverse mounting of a lenses. It is an inexpensive means of obtaining a relatively high reproduction or macro ratio. The BR 2A also increases the working distance for normal or wide angle lenses. The BR 2A is compatible with lenses that have a 52mm front attachment size.