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  1. #1

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    Kodak TMX, Special Coating Blocking UV Light

    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. #2
    AgX
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    -) 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. #3
    msage's Avatar
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    I believe the coating is on the base side, so it effects only when you are printing the processed negitive.

    Michael

    Quote Originally Posted by lensmagic View Post
    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?



 

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