This sale is for a really excellent condition Mamiya M645 PD-S Prism Finder for manual exposure metering, in perfect working order, suitable for any of the older Mamiya 645 cameras – the M645, M645J or M645 1000S. This is actually the S version of the PD prism that includes the 1/1000 speed setting that is used on the 1000S camera.
This prism has only minimal signs of use, but there is a faint horizontal line running through the prism when viewing. This is not really surprising – I guess 90% of M645 prisms have the same fault, purely due to age. In use this is not a problem, and can be used as an aid to keep the camera level.
Otherwise the prism is near mint; it comes with a bottom cover to help keep it like that. Please note that you cannot use it with any of the newer Mamiya 645 Super, Pro and ProTL cameras.
Instructions for this prism can be downloaded from this website.