Page 29 of the 1980 (silver cover) Darkroom Dataguide has (almost) the same formula and colour patches.Originally Posted by ic-racer
The only difference in the formula from the 1970 version is that the 1970 guide included both Avoirdupois and metric measures.
Unfortunately, the 1980 Dataguide doesn't have the neat paper samples that the 1970 Dataguide does.
11-25-2010 12:20 PM
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“Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”
Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2
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