Kodak chart scene, film, paper zone carry through, can't find it.

Discussion in 'Exposure Discussion' started by markbarendt, Apr 5, 2013.

  1. markbarendt

    markbarendt Subscriber

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    So I've seen it here at APUG but for the life of me I can't find it.

    Anybody know where to find it?
     
  2. ic-racer

    ic-racer Member

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    Do you mean like the tone reproduction curve that Steve Beskin has posted but with Zones instead of log values? 0081id-17643584.jpg
     
  3. markbarendt

    markbarendt Subscriber

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    Good thought but no.

    It was a Kodak chart as I remember.
     
  4. MattKing

    MattKing Subscriber

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  5. Bill Burk

    Bill Burk Subscriber

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    You're probably looking for the funnel... Sure it's in one of those threads...
     
  6. Bill Burk

    Bill Burk Subscriber

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  7. markbarendt

    markbarendt Subscriber

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  8. markbarendt

    markbarendt Subscriber

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    Bingo! Thanks Bill.
     
  9. michael_r

    michael_r Subscriber

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    Just for reference, this representation of tone reproduction is called a Dorst diagram (proposed by Dorst in the 40s). It was proposed as an alternative to the "windmill"/quadrants representation which is from Jones.

    Interestingly, re-reading the short section on this in Henry, apparently the original Jones study included windmill diagrams with up to 10 transitions, which must have been quite complicated to follow. Perhaps this is one of the reasons for Dorst's proposal, which although less "graphical", seems easier to follow when more than a few transitions are involved.
     
  10. Stephen Benskin

    Stephen Benskin Member

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    Like this very low resolution example.

    Multi quad tone repro curve.jpg
     
  11. michael_r

    michael_r Subscriber

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    Exactly. Even a high resolution version would be clear as mud.
     
  12. markbarendt

    markbarendt Subscriber

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    Thanks for the info Michael.

    I do find it easy to follow in comparison to windmill diagrams.

    And Stephen that is quite a chart!