front threads on Dagor lens

Discussion in 'Large Format Cameras and Accessories' started by SLNestler, Jul 4, 2005.

  1. SLNestler

    SLNestler Member

    Messages:
    101
    Joined:
    Sep 26, 2002
    Location:
    Coral Spring
    Shooter:
    Large Format
    Hi.
    I recently purchased a 12" Dagor lens, which has front threads that are almost 58 mm, making it impossible to find appropriate accessories.
    Does anyone know how I can adapt this for 58mm; either by purchasing an adapter, or by having the lens re-machined?
    Thanks,
    Steven
     
  2. Dan Fromm

    Dan Fromm Member

    Messages:
    4,203
    Joined:
    Mar 23, 2005
    Shooter:
    Multi Format
    Hmm. If all else fails, ask skgrimes about making a push-on adapter that will accept a standard-sized filter. Machining the lens should probably be a last resort.
     
  3. Steve Sherman

    Steve Sherman Subscriber

    Messages:
    536
    Joined:
    Sep 14, 2003
    Location:
    Connecticut
    Shooter:
    ULarge Format
    Dagor Front threads

    Steve,

    I have the exact lens. Older lens typically do not have modern day accessory thread sizes. My lens has plastic lens caps with the number 60 imprinted on the cap. No doubt because the outside dimension of the front element is 60mm, the inside dimenision meauseres 56mm. You can only hope to find a 60mm compression slip on filter holder, again not commonly found.
    For what it's worth, all my filters are series 9 with various step down rings for various lens I have. With a series 9 filter holder and a step down ring you can just carefully place on the front element so long as the camera is not tilted downward. Good luck
     
  4. BradS

    BradS Member

    Messages:
    4,219
    Joined:
    Sep 28, 2004
    Location:
    S.F. Bay Area
    Shooter:
    4x5 Format
    Would it have inch size threads? 58mm is awful close to 2.25 inches....
     
  5. David H. Bebbington

    David H. Bebbington Inactive

    Messages:
    2,364
    Joined:
    Dec 12, 2004
    Location:
    East Kent, U
    Shooter:
    Medium Format
    Best solution I have found is a Cokin filter holder with an adapter with pinch screws instead of a threaded ring.