How to install this lens on a shutter?

Discussion in 'Large Format Cameras and Accessories' started by pgram, Jul 4, 2013.

  1. pgram

    pgram Member

    Dec 18, 2012
    loiano, ital
    Medium Format
    Hi all,

    I found in a closing shop this lens:

    Schneuder-Kreuznach Symmar 1:5,6/240 1:12/420 installed on a Sinar lens board.

    The lens has no shutter, only a diaphragm with two scales on it, from 5,6 to 45 and from 12 to 45.

    I would like to use it, but i need to install it on a shutter!

    the thread of the two elements is 45.7 millimeters, both sides.

    I cannot find any correspondance, it is not a Copal 1 nor a Copal 3...

    Does anybody know what shutter i shall look for, and where to find it?

    Any advice?

    Paolo Schneider lens 2.jpg Schneider lens.jpg Schneider lens 3.jpg
  2. shutterfinger

    shutterfinger Member

    Feb 25, 2013
    San Francisco Peninsul
    4x5 Format
    Looking at your pictures the lens is in a Sinar DB shutter, which I am not familiar with.


    A Compur 2-X tube 5/I has a 35mm front opening edge to rear opening edge
    A Compur 2-X tube 5/II has a 25mm opening to opening
    and both have a 45.8 mm opening.

    You will probably have to have adapters made to fit the lens to current shutters unless you come across an older shutter that the lens barrels will fit and provide the correct spacing between groups.
    The shutters are CN-1408-012 and CN-1408-013 in this service manual
    Last edited by a moderator: Jul 4, 2013
  3. smieglitz

    smieglitz Member

    Oct 18, 2002
    Climax, Michigan
    Large Format
    There is currently one listed on Ebay (#400212697245) in a Compur 2 shutter. That's probably what you need. Have a look through this old thread on

    FWIW, I have a convertible 240mm Symmar mounted in a modern Compur 3 shutter. Also currently on Ebay (#181170420857) you'll find one in a Linhof Compur (3?) and another (161058477231) in an electronic Compur 3.