Hasselblad SWC scale focusing

Discussion in 'Medium Format Cameras and Accessories' started by ymc226, Dec 23, 2009.

  1. ymc226

    ymc226 Member

    Messages:
    284
    Joined:
    Oct 13, 2006
    Location:
    New Jersey
    Shooter:
    Medium Format
    When setting the closest distances on the SWC focusing ring, do you measure the distance from the front of the lens to the object or from the film plane to the object?

    I think it makes a difference with the lens wide open.
     
  2. BenZucker

    BenZucker Member

    Messages:
    161
    Joined:
    Jul 23, 2009
    Location:
    New York, NY
    Shooter:
    4x5 Format
    i have one, but its not in front of me at the moment, i believe its 12 inches. the measurement is also from the film plane.
     
  3. takef586

    takef586 Member

    Messages:
    55
    Joined:
    Aug 24, 2006
    Shooter:
    Medium Format
    You should measure the distance from the film plane i.e. roughly from the slot where you put in the dark slide. For accurate focusing you can get the RMXD adapter.
     
  4. ymc226

    ymc226 Member

    Messages:
    284
    Joined:
    Oct 13, 2006
    Location:
    New Jersey
    Shooter:
    Medium Format
    Thanks, I've been measuring from the lens and no wonder my pictures are out of focus!
     
  5. edtbjon

    edtbjon Member

    Messages:
    396
    Joined:
    Jun 8, 2004
    Shooter:
    Medium Format
    At least the A12 film magazines have a film plane index (a ring with a vertical line through it) on the right side of the magazine housing. It's about 1" or 2.5 cm above the bottom of the magazine. Measure from there and you'll get millimeter precision. (On the left side of the magazine, you can measure from the chrome metal rim (?) about 1/16" (1.5mm) behind the darkslide slot, which should be within tolerances for anything except maybe extreme macro work.)
    This goes for all Hasselblad V-series cameras, not only the SWC.

    //Björn