What RB67 back is this? 120 or 220? or Both?

flowwbo · Jul 8, 2016

Hiya! I just purchased my first medium format camera off of eBay (I've been shooting 35mm for a few years now and am taking my next step). I guess I should've checked with what back it was before I hit "confirm". It says '220 120' on top but I've yet to see a back that is compatible with both films that isn't electronic. Can someone help me out with what back this is? I'm going to be shooting 120 and want to make sure this one is compatible.

I've researched online the past hour and have come up with no results.

Thank you!

TheToadMen · Jul 8, 2016

Did you check here?

"The 6×7 backs share the same outer cassette, but the insert which actually holds the film is different for 120 and 220. You could just keep a bunch of loaded inserts and one cassette, although you wouldn’t be able to change backs mid-roll. However, the cassettes and inserts are on compatible with the same generation; you cannot use a Pro-SD insert with a Pro cassette. The official Mamiya word is that 220 film can be used in the 120 insert, however, film flatness is decreased and is not recommended. The power backs for the Pro-SD have a reversible pressure plate so that 120 or 220 film can be used."

mweintraub · Jul 8, 2016

I see this person has one:
http://russlowe.blogspot.com/2012/12/mamiya-rb67-medium-format-film-camera.html

Can't find much more about it, though. Is it a 6x7 Motorized Back that requires the bottom controller thing?

Kirks518 · Jul 8, 2016

I have one. It's somewhere nearby, but not sure where it is at the moment, so I'll go off memory.

It is a motorized back, but doesn't require the motor to operate (hence the advance lever). Inside there is a 'switch' (for lack of a better word) that you move for 120 or 220 film. Otherwise, it's the same as any other RB back.

flowwbo · Jul 8, 2016

TheToadMen said:
Did you check here?

"The 6×7 backs share the same outer cassette, ..."

I did check out that site but didn't see a non motorized 220/120 back which is why I was confused. Thank you!

mweintraub said:
Can't find much more about it, though. Is it a 6x7 Motorized Back that requires the bottom controller thing?

Apparently it is a motorized back but just without the motor thanks to Kirk's post. Interesting...

Kirks518 said:
I have one. It's somewhere nearby, but not sure where it is at the moment, so I'll go off memory.

It is a motorized back, but doesn't require the motor to operate (hence the advance lever). Inside there is a 'switch' (for lack of a better word) that you move for 120 or 220 film. Otherwise, it's the same as any other RB back.

Thank you! This solves the mystery. As long as I can use 120 with it I'm a happy camper ^__^ Thank you for all the speedy responses.

TheToadMen · Jul 8, 2016

flowwbo said:
Thank you! This solves the mystery. As long as I can use 120 with it I'm a happy camper ^__^ Thank you for all the speedy responses.

And welcome to APUG!

What RB67 back is this? 120 or 220? or Both?

flowwbo

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