50mm and 65 mm finders for Mamiya Super 23

reddesert said:

The 50 and 65 mm lenses need auxiliary viewfinders, but often are sold without them. I can only comment on the 65mm viewfinder. It has a full view for 6x9 and two pairs of triangle-pointers at the edges of the frame to indicate where the edges for 6x7 will be. The numbers on the rear are for parallax correction of the field of view depending on distance, as Dan said. You slide the eyepiece up and down, rather than rotating it.

The 65mm lens on 6x9 has about the field of view as the 28mm focal length on 35mm camera, so if you don't have the Mamiya viewfinder an aftermarket 28mm finder will approximate it.

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xya said:

Same for the 50mm finder. I have made a page for the whole system https://www.oddcameras.com/mamiya/mamiya_universal.htm

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Steve906 said:

I have the 65 with no finder and use it without, just remembering the field will be greater (100 mm set on the standard finder) its fairly easy to frame with main subjects just on the very edge of view so the result is about right. Also remember that focus has to be done in the standard finder first, then frame with the accessory one, which I think I'd find a pain and not use even if I had one. I never really use it so close that parallax is too great a problem either.

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