Beseler 240 mm lens retaining ring

Discussion in 'Darkroom Equipment' started by jeroldharter, Feb 22, 2009.

  1. jeroldharter

    jeroldharter Member

    Messages:
    1,960
    Joined:
    Nov 6, 2005
    Location:
    Wisconsin
    Shooter:
    4x5 Format
    I have this lens with no retaining ring. I know it is larger than 50 mm but have not been able to find the exact size for the retaining ring/jam nut.

    Does anyone know the proper size? Thanks.
     
  2. OP
    OP
    jeroldharter

    jeroldharter Member

    Messages:
    1,960
    Joined:
    Nov 6, 2005
    Location:
    Wisconsin
    Shooter:
    4x5 Format
    bump. Anyone out there?
     
  3. MattKing

    MattKing Subscriber
    Ads Enabled

    Messages:
    23,332
    Joined:
    Apr 24, 2005
    Location:
    Delta, BC, Canada
    Shooter:
    Multi Format
  4. Anscojohn

    Anscojohn Subscriber

    Messages:
    2,712
    Joined:
    Dec 31, 2006
    Shooter:
    Medium Format
    *******
    I have a 210 Rodenstock that is ca 63mm.
     
  5. ic-racer

    ic-racer Member

    Messages:
    8,719
    Joined:
    Feb 25, 2007
    Location:
    Midwest USA
    Shooter:
    Multi Format
    If its a re-branded Rodenstock 240mm f5.6 I think the thread is 72mm.
     
    Last edited by a moderator: Feb 23, 2009
  6. domaz

    domaz Member

    Messages:
    566
    Joined:
    Nov 2, 2007
    Location:
    Tacoma, WA
    Shooter:
    Multi Format
    I heard some people say that cheap step-up rings can work as retaining rings. Like a 72mm-82mm something like that. No idea if it works though.
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies. If you have a Photrio account, please log in (and select 'stay logged in') to prevent recurrence of this notice.