This sale is for a really excellent condition non-metered Mamiya 645 Super Prism Finder N, in perfect working order, suitable for the newer Mamiya 645 Super, Pro and ProTL cameras.
This prism is basically near mint with only a few very light marks but it does have a couple of tiny black spots (not fungus) visible inside. One looks like a dead bug, the other just a speck of dirt. Otherwise this prism perfect glass, and includes the often lost rubber eyecup. Please note that you cannot use it with any of the older Mamiya M645 series cameras – the M645, M645J or M645 1000S.
Instructions for this prism can be downloaded from this website. Note that this prism does not have a light meter.