RB67 ProS 6x7 120/220 Power Back question

Discussion in 'Medium Format Cameras and Accessories' started by jdsanika, Nov 3, 2013.

  1. jdsanika

    jdsanika Subscriber

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    Just came across an old style (separate power supply, which I don't have) ProS 6x7 power back. How do you set up the back for 120, the pressure plate currently says 220? Are there different pressure plates? I removed the pressure plate thinking maybe you just reversed the plate but that doesn't work. Thanks in advance.

    john
     
  2. patrickth

    patrickth Member

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    Do you have a pic or link? You sure its 220 and not Beattie Long Roll?
     
  3. Xmas

    Xmas Member

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    Memory fading but yes they had two plates with 120 and 220 text, think there was a plastic box to protect the one not in the back.

    The back can be used without the power supply using the lever.
     
  4. jdsanika

    jdsanika Subscriber

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    Thanks Xmas, that's kind of what I was thinking.