Status M vs. Status A transmission density??

Discussion in 'Darkroom Equipment' started by Pasto, May 5, 2011.

  1. Pasto

    Pasto Member

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    Could someone please explain the difference between status M vs. status A transmission density. I'm just starting a new round of testing with my Xrite 820 and can't find any info on this. I did note that Kodak requires Status M when measuring color film. What do you use for B&W film?

    Thanks.
     
  2. Mr Bill

    Mr Bill Member

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    If you're measuring color negs, yes, use Status M. For color prints or transparencies, use Status A. The two setups, Status A vs Status M are not drastically different - their sensitivity peaks are roughly 10-20 nm apart in wavelength. Apparently, however, this is significant for the dye sets they are intended to measure.

    For B&W, you would generally use the "visual response" setting, but in reality any of the color settings will likely give nearly the same reading.