why purple!

Discussion in 'B&W: Film, Paper, Chemistry' started by momo, Nov 18, 2008.

  1. momo

    momo Member

    Messages:
    67
    Joined:
    Nov 18, 2008
    Location:
    Newbury, Ber
    Shooter:
    35mm
    If this is in the wrong place I expect a mod will kick my backside!, but I don't know what has happened to a film i processed. It was a ilford delta 100 pro, I developed it in ilfosol s according to the stated times and its got a medium tint of purple all over, can anyone tell me what it may be or I did wrong if possible from this description please ?.

    Thanks peeps.
     
  2. drpsilver

    drpsilver Subscriber

    Messages:
    423
    Joined:
    Oct 31, 2005
    Location:
    Los Altos, CA
    Shooter:
    Multi Format
    18 Nov 2008

    Momo:

    The purple tint you see is what is left of the anti-halation layer that is placed on the film. If the negatives look good then you have developed them properly. The anti-halation layer is usually removed when the film is fixed or bathed in hypo clearing agent. The good news:smile: is that unless it is really dark purple the tint does not seem to effect print contrast or add fog to the print. To lessen the purple tint you might consider re-fixing with fresh fix.

    Hope this works for you.

    Regards,
    Darwin
     
  3. momo

    momo Member

    Messages:
    67
    Joined:
    Nov 18, 2008
    Location:
    Newbury, Ber
    Shooter:
    35mm
    Thanks drp, well I think i will give re fixing a go and hope its ok. ok, whos taking bets or odds ?, I never get things right............. I can prove that absolutely - i got married......
     
  4. David Brown

    David Brown Subscriber

    Messages:
    3,597
    Joined:
    Feb 16, 2004
    Location:
    DFW, Texas
    Shooter:
    Multi Format
    When I get around to writing a "how-to" book on black and white processing, the title of one chapter is going to be: "Why Is Your Film Purple?". :tongue:
     
  5. jim appleyard

    jim appleyard Member

    Messages:
    2,131
    Joined:
    Nov 21, 2004
    Shooter:
    Multi Format
  6. Colin Corneau

    Colin Corneau Subscriber

    Messages:
    1,871
    Joined:
    Nov 20, 2007
    Location:
    Brandon, MB
    Shooter:
    Medium Format
    Also using fresh, properly mixed hypo clearing agent helps a lot with that, I've found.