Mamiya 645 film holder compatibility

Soeren · Dec 11, 2013

Hi guys
In short. Are the filmholders for Mamiya 645 Super and pro interchangeable? I think so but Im not sure.
Best regards

Mike051 · Dec 11, 2013

Yes, they are.

Soeren · Dec 11, 2013

Thanks Mike

MattKing · Dec 11, 2013

Yes, although they are called either film inserts or film backs. The backs hold the inserts.

Just be sure you don't accidentally end up with a 220 insert when you want 120.

Or for that matter a 35mm back when you want 120.

spijker · Dec 11, 2013

You can convert a 220 insert to a 120 insert by unscrewing a little "thingie" on the side that indicates to the camera whether there's 15 or 30 frames on the film.

I've tried it and it works fine on my Pro. I couldn't see/feel any difference between the 120 insert and the 220 insert with respect to the pressure plate.
See also this thread: (there was a url link here which no longer exists)

Menno

Subversive Mk II · Dec 9, 2021

spijker said:
You can convert a 220 insert to a 120 insert by unscrewing a little "thingie" on the side that indicates to the camera whether there's 15 or 30 frames on the film.

I've tried it and it works fine on my Pro. I couldn't see/feel any difference between the 120 insert and the 220 insert with respect to the pressure plate.
See also this thread: (there was a url link here which no longer exists)

Menno

Useful information, thanks. With the appearance of 220 from Shanghai, I'm inclined to acquire another 220 holder, but it's handy to know that trick there in case I need it.

Mamiya 645 film holder compatibility

Soeren

Mike051

Soeren

MattKing

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spijker

Subversive Mk II

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