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  1. #1

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    Enlarging lens with flared end -- how do I attach it?

    I have an enlarger lens that, instead of being threaded, has a flared end. How do I go about attaching this to my enlarger?

  2. #2
    Ian Grant's Avatar
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    With difficulty.

    It must have fitted a special board or turret that the flange locked into. What lens is it ? Post an image.

    Ian

  3. #3

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    I had to stick it under the scanner as I couldn't find my digital camera.


  4. #4

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    Are you sure the thing does not come apart?
    It looks like the lens might be mounted to a Durst Lens Cone.
    If it does not come apart in the middle look down the inside from the rear of the lens and see if there is retaing ring holding the lens to the cone.

  5. #5
    Bob Carnie's Avatar
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    This looks like a durst cone as suggested, and the lens should come away from the adaptor which is the ring that is inserted into a flange with a screw thread to hold onto the enlager.
    Quote Originally Posted by mwdake View Post
    Are you sure the thing does not come apart?
    It looks like the lens might be mounted to a Durst Lens Cone.
    If it does not come apart in the middle look down the inside from the rear of the lens and see if there is retaing ring holding the lens to the cone.

  6. #6
    Rick A's Avatar
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    It certainly does seperate from the mounting cone. It may be that all you need to do is apply a SMALL amount of penetrating oil, and carefully unscrew the lens. Be extra careful not to get too much oil on the lens, then clean up afterward. A strap wrench could be beneficial here.
    Good luck
    Rick

  7. #7
    Ian Grant's Avatar
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    I've had quite a few Durst selected Componon's and sometimes there's a small grub screw holding the mount to the lens. Often the lenses were factory fitted to the flange or adaptor and where usually supplied fitted to roll head printers turrets etc

    My Componon S 150mm is similar but in a long screw thread mount, I assumed it was like yours but once I loosened the screw it came apart easily. Don't try a wrench etc as if there is a screw and it's not released you'll damage the mounting threads, and only try penetrating oil as a very last resort.

    The Dust select lenses are similar to the Linhof & Sinar select Schneider camera lenses and were optically tested before being accepted and badged by Durst, it's an excellent lens.

    Someone will buy the mount if you dont need it.

    Ian

  8. #8

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    There's a hole but -- as far as I can see -- no screw. Tried unscrewing the mount by hand -- won't budge. Will investigate later.

  9. #9
    Ian Grant's Avatar
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    Quote Originally Posted by cinefane View Post
    There's a hole but -- as far as I can see -- no screw. Tried unscrewing the mount by hand -- won't budge. Will investigate later.
    That's as it should be, there is supposed to be a small grub screw it's quite deep inside, unscrew that and the two parts undo.

    Ian

  10. #10

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    Looks like it's suffered at the hands of a previous owner. I got a good look at the grub in direct sunlight. Its head has been worn away. Short of drilling the grub out, I'm stuck.

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