Re: Cyanotype tests with two different metal halide lamps

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From: Ed Stander (glassact@compuserve.com)
Date: 11/11/01-02:44:31 PM Z


Sandy:
    If I remember right, 2 steps on the tablet equal 1 stop in real life.
Therefore:

    Max black at step 8 = 20 minutes
    Max black at step 6 = 10 minutes
    Max black at step 4 = 5 minutes
    Max black at step 2 = 2.5 minutes = 150 seconds, not 75 seconds...

THE same is true for the other calculation: If first max black is at step
6, A max black at step 2 will take 5 minutes.

  I'll try an exposure now at 30 seconds, and will let you know what I
find. Cheers, Ed

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