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  1. #11
    Ian Grant's Avatar
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    You asked an interesting question earlier:
    Quote Originally Posted by BradS View Post
    but....what K-Mount lens has enough coverage for 9X12?
    I think these cameras collapse close enough for folding to allow 35mm lenses to be be focused & used, it will be interesting to try a few K mount lenses, particularly my 17mm.

    As Ole says
    Quote Originally Posted by Ole View Post
    One interesting "cross candidate" is mounting the lens bit off a Leitz Hektor 135mm in a 39mm to 42mm to PK adapter - it covers 9x12cm with movements.
    Unless you try you don't know

    Ian

  2. #12
    Ole
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    Ian, I've been using a Hektor like that on a Pentax Mz-5n, with macro bellows for focusing.

    And since I had it off the barrel extension and focusing mount anyway, I stuck it on my Speed Graphic for a look. I believe it was originally designed as a LF lens!
    Last edited by Ole; 02-04-2008 at 05:14 PM. Click to view previous post history. Reason: Can't spell with a cat on my lap...
    -- Ole Tjugen, Luddite Elitist
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  3. #13
    Ian Grant's Avatar
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    Well, strange you say that, occasionally Leitz lenses appear on ebay with LF coverage. Leitz sat on Barnacks Leica for quite a time before it went into production. Historians are only interested in Leica as a 35mm manufacturer.

    Ian

  4. #14

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    Something like this then.....

    Basically, a piece of aluminium with a copal 0 size hole is screwed to an old lens mount. The lens is then attached in the normal way. I've got a 150 G Claron, 105 Leitmeyer and 90 Angulon mounted this way.

    The body mount is best done by using a short extension tube as this gives you the little lever and pin to hold the lens in place.
    Attached Thumbnails Attached Thumbnails k-mount lenses.jpg   bayonet mounts.jpg  

  5. #15
    Ian Grant's Avatar
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    Quote Originally Posted by paul ewins View Post
    Something like this then.....
    Exactly like that

    Ian

  6. #16
    jd callow's Avatar
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    very cool!

    *

  7. #17

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    Quote Originally Posted by paul ewins View Post
    Something like this then.....

    Basically, a piece of aluminium with a copal 0 size hole is screwed to an old lens mount. The lens is then attached in the normal way. I've got a 150 G Claron, 105 Leitmeyer and 90 Angulon mounted this way.

    The body mount is best done by using a short extension tube as this gives you the little lever and pin to hold the lens in place.
    Fine, wonderful, but your folder has a fixed back. This raises two questions.

    I can see you to set the thing up to focus one lens. What will you do with another lens with a different focal length? Focusing on a ground glass doesn't seem possible.

    And what will you do with a lens whose rear cell's outer diameter exceeds the K-mount's inner diameter? Again, unless you set up to shoot a whole roll of film with the lens, the old unscrew the rear cell and reattach after the shutter/front cell is mounted trick won't work.

  8. #18
    Ian Grant's Avatar
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    Dan, all my modern LF lenses for my 5x4 and 9x12 will fit the rear cells through a Pentax K-mount, even my Rodenstock 90mm f6.8 Grandagon. Also all my German vintage lenses in Compur shutters, the only lenses I have that think won't fit are Illex Paragons.

    Ian

  9. #19

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    You've got an excellent project going here. What's the current status? I have a spare 9x12 Avus in storage with fogged elements. Maybe I could put a Kiev 60 mount on it and pop a Mir-26 on the front. That should make for an interesting peice of gear. (but will it float?)

  10. #20
    Ian Grant's Avatar
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    The project has to wait 3 more weeks the cameras and bits are in the UK, while I'm by the Aegean

    Ian

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