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  1. #1
    Kurt
    Join Date
    Jul 2007
    Location
    Salisbury, Maryland
    Posts
    69

    Step wedge film test question

    I was looking to revisit my film testing using a different approach than I had used previously and I wanted to use a step wedge (like the one below) to relate densities to actual print values that I get with my "system" (equipment, materials and methods) and I have a couple of questions that I'm sure someone here can help me with. First off, this step wedge is in increments of .15 which allegedly represent 1/2 stop each. If I was to put this in my enlarger and print it using a "Normal" (grade 2 filter) so that Step 2 shows the slightest bit of value above pure black (making that Zone I), should I expect to find a Zone IX print value (last noticeable value before white paper base) at around Step 18?
    I have a bunch of other questions, but I'll ask them in subsequent posts (if there are any). Thanks in advance.
    Click image for larger version. 

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    Last edited by k_redder; 31-Oct-2012 at 19:47. Reason: typo

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