For macro photography
52mm x 0.75 female-female adapter for use with Nikon BR-2
Available with M39 LTM mount, M42 mount or T2 mount
Available in aluminum. For using lenses on the Nikon BR-2 or BR-2A adapter, to help aligning the lens aperture scale.
A solid adapter, made in aluminum, with female 52mm x 0.75 thread on the rear end for mounting on the Nikon BR-2 and BR-2A adapters. Available with female M39 Leica thread mount, M42 (42mm x 1) thread mount or T2 (42mm x 0.75) thread mount on front. The adapter is partially painted matt black on rear.