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Thread: RB 67 Back

  1. #1

    RB 67 Back

    My Dad has a RB67 and a couple backs, one of which I borrowed.

    I resealed the back with a kit I got from Jon Goodman, via ebay. I'll give him and the product an unsolicited plug, both are great. Here is a link to some tech sheets http://www.kyphoto.com/classics/sealreplacement.html.

    It took me a while, I took my time, probably 4 hours total time. A lot of it is waiting for the old adhesive to loosen up. The actual appplication of the seals is just tedious. So far two rolls and no leaks I can attribute to the back.

    Anyway....the camera...I have some black tape around where it seals to the back that seems to have cured a very minor leak. I think a thicker sealing ,material will solve it without the need for tape.

    You can see a little lever on the side. That is to keep the shutter from sliding opoen by accident. As you'll see in image 3 I shimmed the back of the shutter slide and that took care of a loosness. Attached files

  2. #2

    RB 67 Back

    Sliding shutter. The rail on the top enchroached into the image area in roll 1 so we modified it and that is gone.

    Attached files

  3. #3

    RB 67 Back

    From the back you can see the brass shim stock I glued on to snug the slider up a bit.

    Statictics: f/100, 25mm focal length, .33mm pinhole.

    Needless to say on 6X7 25mm is nice an wide. Roll 2 has some interesting possibilities. As soon as it dries I'll post a couple.
    Attached files

  4. #4

    RB 67 Back

    Very nice shutter. Have to keep that in mind for future projects

  5. #5

    RB 67 Back

    Nice job, Marv. Really like the shutter. Looking forward to the results.

  6. #6

    RB 67 Back

    Marv, great camera! The RB67 backs seems to be great, I have a couple and have used them on 3x2 Graflexs. Appear to be better constructed than Graflex backs and relatively reasonable on EBay. Looking forward to seeing photos.

  7. #7
    500+ Posts Delio's Avatar
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    RB 67 Back

    What an elegant solution !!!, I was debating if to buy a 6x7 back just like the one in your posted pictures or the Zeiss 6x9 then decided that it would be easier to ditch the glass. However; they will have another flea market in ?. about 3 months. delio

  8. #8
    500+ Posts Longbow3's Avatar
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    RB 67 Back

    Fantastic. now I have a new project.. up to about 12 of them now.

  9. #9
    500+ Posts Daryl's Avatar
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    RB 67 Back

    Good work there, Marv!
    Nice camera!

  10. #10

    RB 67 Back

    Quote Originally Posted by Marv
    My Dad has a RB67 and a couple backs, one of which I borrowed.
    Great work. These back etc... are really dropping in price and are built like Panzer tanks.

    Did you have any problems with the wind stop release coupling pin and I don't think that model has the coupling pin for multi-exposure prevention? Any tips on winding? A .33mm pinhole sounds a bit big?

    I have a design, that is going to test that uses and RB67 back, the RB67 rotating adapter and a Delrin or 5051 aluminium (not decided yet) milled plate to allow the mounting of an ILEX No 3 on a flange nut with a .2 mm diameter pinhole at 28.89 mm focal length. This allows for the maximum FOV with this arrangement. A 1mm padding of the flange nut and a 29.89 mm focal length gets best overall resolution (constant 1.56). . Attached files

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