I have searched everywhere, and (on photo.net) found the suggestion of using Nikon FM diopter corrections for the 645óbut on starting to order one from BHPhoto, I saw that the diopter was a different shape to the Bronica one (rectangular instead of nearly square) and looked to me as thought it would not fit.

Can anyone suggest an after-market diopter that they know will fit the RF 645? I need a -2, or possibly -3 for accurate focussing. Thanks in advance, KL

I should mention that winding in that first roll of Velvia 100 was a LOT more exciting that inserting a CF card...