Kodak TMX, Special Coating Blocking UV Light

Discussion in 'B&W: Film, Paper, Chemistry' started by lensmagic, Mar 23, 2009.

  1. lensmagic

    lensmagic Subscriber

    Messages:
    127
    Joined:
    Nov 4, 2005
    Shooter:
    Medium Format
    In the May/June 2008 issue of View Camera Magazine, Sandy King, in an excellent article comparing T-Max 100 and T-Max 400 films, found among other things that T-Max 100 has a special coating that blocks a huge amount of the available UV light, making TMX virtually useless for printing with UV sensitive processes. My question is: does this coating block UV light when the film is initially exposed, or just when a print is being made from a TMX negative? In other words, if I want to photograph a scene for which I would normally affix a UV filter, can I dispense with the UV filter if I use TMX film?
     
  2. AgX

    AgX Member

    Messages:
    12,222
    Joined:
    Apr 5, 2007
    Location:
    Germany
    Shooter:
    Multi Format
    -) A UV-blocking coating will block UV anytime. (Of course it needs to be be in the optical path. A UV absorber in the base won't effect the emulsion...)

    -) I only know of two methods of installing a UV-blocker in processing: the lacquering of a print with UV-blocking varnish and the soaking of a print with brightener (though that is actually inot intended as UV-blocker).
     
  3. msage

    msage Member

    Messages:
    297
    Joined:
    Mar 22, 2003
    Location:
    Washington State
    Shooter:
    Large Format
    I believe the coating is on the base side, so it effects only when you are printing the processed negitive.

    Michael