Mamiya RB67 Pro S Back

[jmendez]

Good afternoon all, I am confused and need some advice. Does the Pro S need the revolving back to attach the 120/220 film holder to the camera? Or is this back only to allow the photographer to change the orientation of the film plane.

Thanks Jorge

 

[NormanV]

You have to have the revolving adaptor to fit any film holder to the camera.

 

[NormanV]

It is a bit more complicated than that. I suggest that you download the instruction manual from the internet. Page 36 explains it all.

 

[archphoto]

According to the manual: you need one in order to take pic's !

There is a seperate frame for polaroid and other stuff

 

[paul ron]

Yes you need the revolving back inorder to attach a film back. The revolving back comes in 3 flavors.

1--the old style plain RB67 rev back... has no multi exposure protection built in n will not move the red bars in the view finder of a Pro-S. It will also fit n work fine on a pro s but you will have to be mindfull of your exposures n back orientation. (this back has only one siver bullet where a pin fires out of)

2--the RB67 Pro-S version... an improved version of the older RB rev back. It has the multi exposure prevention built in and moves the red bars in the view screen for proper back orientation. (has 2 silver bullets that pins fire out of)

3-- A special back adapter was made for the polaroid film back.

 

[archphoto]

So Paul Ron: if you have a RB 67 Pro S you actualy could have both: one for standard shots and one for double exposures.....

Thanks, now I have to start looking for the old-style frame !

Peter

 

[Alexander Ghaffari]

I use the Pro-S rotating back and make multiple exposures all of the time.

 

[nyoung]

I'm thinking that the double exposure protection is somewhat film back dependent. I use a Pro-S rotating back adapter on a Pro-SD body. With my Pro-S film back, I can't make a double exposure. With my older pre-pro anything film back, I can make all the double, triple, quadruple exposures I want.

 

[jmendez]

Thanks to all, looked at the Mamiya web site and downloaded the instruction manual for the Pro S; does seem to indicate that you cannot attach the roll film holder without the Pro S revolving adapter and then there are other adapters for other types of film. For what it's worth, it also states that you should NOT use the older adapter on the newer Pro S body since the safety interlocks were not available on these.

Jorge

 

[k_jupiter]

Thanks to all, looked at the Mamiya web site and downloaded the instruction manual for the Pro S; does seem to indicate that you cannot attach the roll film holder without the Pro S revolving adapter and then there are other adapters for other types of film. For what it's worth, it also states that you should NOT use the older adapter on the newer Pro S body since the safety interlocks were not available on these.

Jorge

That's kind of the point. He wants to disable the interlock for double exposure. If you also disable the interlock for dark slide, well that just means you can't complain when all your film comes out seriously underexposed.

tim in san jose

 

[paul ron]

The rotating back of the Pro-S has one part of the double exposure interlock, an extra pin that pops out (2 silver tits). The Pro-S film back has the other part of the double exposure feature, a second sensor hole to accept the extra pin of the rev back (one hole at each corner). The film back has a lever by the film advance lever to over ride the interlock which allows you to use the multi exposure feature.

Having 2 rev backs for a Pro-S... why?