This sale is for a near mint condition Mamiya RB67 Extension Tube 45mm (No.1).
This tube has minimal signs of use, just a few very tiny paint chips – mainly on the underside at the rear end of the tube; this tube has barely been used. It has been tested and works perfectly. An absolute bargain. Please note that no end caps are included with this tube.
This extension tube will give you 0.35 to 0.72x magnification with a standard 127mm lens.
A copy of the instruction leaflet can be downloaded from the Downloads section of this website that gives full details of usage (essential for correct exposure if you do not have a metered finder).