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  1. #11
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    They do indeed have labels on the sides of the backs, but the inserts have no labels that I could see. The counters appear to be on the backs, not on the inserts. This implies that if the insert is removed from the back, only the back will have visible ID. I'm not going to open 4 backs to check this out. Lots of film in there.

    PE

  2. #12
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    What you're thinking is the back is actually part of the insert. The back beyond its lower hinge is really just a shell, with hooks on the front top edge to engage with the locks, a couple flat springs on the inside to hold the insert in place, and on the outside the holder for the film box end. It's open on either side, and closes over the insert edges so the side of the back is really the side of the insert.
    Last edited by lxdude; 10-09-2011 at 07:44 PM. Click to view previous post history.
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  3. #13
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    The advance mechanism and counter are on the back and the counter is geared to the back.

    I guess I have to sacrifice some film. Grrrrrrrrrrrrrrrrrrrrr!

    PE

  4. #14
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    And the gear and counter are part of the insert! Counter-Grrrrrrrr!
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  5. #15
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    Well, the numbers in the counter window are part of the back. That is the problem here. If the counter does not have the right values, then there is a problem. But, without taking it apart and testing it..............

    BTW, there are 2 gears - one in the back and one in the insert. They mesh.

  6. #16
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    The back has no gears. The gear is part of the insert and projects through a slot in the back to mesh with the gear on the body. The numbers in the counter window are part of the insert. The insert has all the gears, the counter, the pressure plate, the crank on the side, and holds the film spools. The back seats the insert and holds it onto the camera, provides the safety interlocks, and provides the dark slide, but the insert is wound directly by the camera.
    Last edited by lxdude; 10-09-2011 at 10:45 PM. Click to view previous post history.
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  7. #17
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    www.youtube.com/watch?v=VmT72aqfq_g

    Go to 2:40 to see the insert being quickly removed and reinserted. Go to 5:00 and you will see the insert being removed prior to loading. Watch closely and you'll see the slot for the gear in the back when the insert is out.

    EDIT:
    This is even clearer.
    http://www.youtube.com/watch?v=lNEEb...eature=related

    Go to 2:20-at about 2:30 you'll momentarily see the gear slot in the back.
    Last edited by lxdude; 10-09-2011 at 11:00 PM. Click to view previous post history.
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

  8. #18
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    I'll defer to you until I can see the video and take one apart.

    Thanks.

    PE

  9. #19
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    You got me so curious that I got out a back.

    LO and BEHOLD - a gear protruding from the back on the side with the windup crank. This appears to couple with the insert!

    Since this back is loaded with 800 Portra, I am loathe to open it. Sorry.

    And, the counter on mine is integral to the back, not the insert.

    PE

  10. #20
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    It appears to be, but isn't. See the diagonal seam on the RH upper surface ahead of the counter? It's right next to the RH lock on dual-lock style backs. The front of the seam (toward the body) is the back and the rear of the seam is insert. Look at the RH underside, next to the hinge, and you will clearly see the insert set into the back, and the back overlapping the insert.

    There is an exception, and that is with either 35mm back (24x36 or pano), which open the same way with the lock on the top, but the sides are solidly attached. A special 35mm insert with its own pressure plate mates to gears on the inside; the counter and the crank for winding while loading are part of the back, as is a rewind button and crank.
    Last edited by lxdude; 10-09-2011 at 11:32 PM. Click to view previous post history.
    I do use a digital device in my photographic pursuits when necessary.
    When someone rags on me for using film, I use a middle digit, upraised.

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