Piece of blue glass on a string?

Discussion in 'Antiques and Collecting' started by athanasius80, Jan 30, 2009.

  1. athanasius80

    athanasius80 Member

    Messages:
    641
    Joined:
    Dec 22, 2004
    Location:
    Huntington B
    Shooter:
    Multi Format
    I was just going through an old LF setup I bought off of e_ay and found a piece of deep blue glass not quite 2" in diamater hanging from a string. Its just a piece of glass. I've stumbled across these before and I'm wondering if people used these for metering before modern light meters.
    Any ideas?
    Thanks!
     
  2. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member Moderator

    Messages:
    18,005
    Joined:
    Sep 7, 2002
    Location:
    Honolulu, Ha
    Shooter:
    Large Format
    That's probably a monochrome viewing filter. Zone VI sold one. The idea is that you can look through the filter to get a better idea of the tonal relationships that B&W film sees.

    P.S.--it's okay to say "eBay" here.
     
  3. glbeas

    glbeas Member

    Messages:
    3,307
    Joined:
    Sep 25, 2002
    Location:
    Roswell, Ga.
    Shooter:
    Multi Format
    Actually they are used for helping to visualise the scene in B&W. This works to show it like blue sensitive film will see it