This sale is for a very good condition Mamiya 645 Super AE Prism Finder N, fully tested and in great working order. It is suitable for use with the newer Mamiya 645 Super, Pro and ProTL cameras and will not fit the earlier M645 models.
This prism is slightly damaged but still in great condition. The top plate has been knocked and the exposure compensation dial taped in position that gives correct exposure; it works perfectly otherwise and has great glass. The only thing you can’t really do is to dial exposure compensation into the prism. If you can live with that then its perfect for you – and dead cheap because of this limitation, about 2/3 the price of an undamaged example. Works perfectly with both AE and manual exposure settings. Please note that no eyecup is included with this prism.
Instructions for this prism can be downloaded from this website. This AE prism is functionally identical to the later 645 Pro AE prism FE401 – just in a different shaped case.