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Mitch Morrow |
11:51 5 Jun 06 |
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Phil Davis |
17:06 5 Jun 06 |
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Mitch Morrow |
13:36 6 Jun 06 |
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Kevin Saitta |
3:08 5 Jun 06 |
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Phil Davis |
16:22 5 Jun 06 |
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Steve Nicholls |
18:33 26 May 06 |
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Steve Nicholls |
0:38 17 May 06 |
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Phil Davis |
7:38 17 May 06 |
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Steve Nicholls |
17:09 17 May 06 |
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Spot Meter Densitometer Paper Reading |
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John Phillips |
17:37 7 May 06 |
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After a couple of decades away from BTZS I purchased an updated edition of Phil’s book and started the tests to once again “dial in” my equipment and procedures. Things have changed since my Cal State Long Beach BTZS workshop with Bob Routh and Phil in 1984. Developing tubes weren’t around, No Palm handheld computers to calculate exposure and development, and the Plotter\Matcher Program was only a rumor on Phil’s Mac-Plus. I even dusted off my spot meter densitometer that I made back then and verified that it still accurately measures the densities of my step tablet.
My question is when using the spot meter densitometer for measuring the reflective density of paper, how do I establish a “zero” point? I can read the base of the paper and establish how all the lower tones relate to it but how can I put a density value on that B+F reading? I’ve read the new and old version of BTZS and the old “Workbook” but don’t see how to define a B+F value.
I look forward in re-familiarizing myself with BTZS and learning the advances that have been developed since I last practiced it.
Thanks for your feedback
John Phillips
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