This sale is for a complete set of genuine Mamiya 645 Auto Extension Rings No. 1, 2 and 3-S to fit all of the Mamiya 645 manual focus cameras – M645, M645J, 1000S, 645E, Super, Pro and Pro TL. These rings are all in mint condition with absolutely minimal signs of use.
These extension rings are in perfect mechanical condition, and come with an original copy of the Mamiya instructions plus both end caps. Apart from that there is not a lot to say – the aperture controls work perfectly and the rings work fine.
These extension tubes will take you all the way from 0.15 (No.1 ring alone) to 1.04x (if you use all three together) magnification with a standard 80mm lens.
I tend to use these rings just to get a closer focus with my 150mm and 210mm lenses – they are so small that they are no problem to carry around in case you need it.