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Jorge Gasteazoro |
20:46 22 Sep 05 |
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personal reference speed point data |
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Miles Nelson |
22:25 24 Apr 05 |
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Phil,
my last question has to do with the data and curves derived while calibrating the prsp. I noticed that using Tmax100 Ilford DD-X 1+6 I was able to fairly easily arrive @ the 2.4 speed point. However I also noticed that the dev/SBR chart derived from this data gave development recommendations that were quite(40%) lower than recommendations for dev tmax 100 in DD-X 1+6 from other charts i've seen including the ones on the film library disc. Could this be because one is using only 3 sheets of film at 4/8/16mins instead of the five film sheet standard test ? In other words even though I used tmax100 and ddx 1+6 for calibrating the prsp should I now do the five sheet test with the same materials to get accurate development charts for that combination if i intend on using Tmax100 and DD-x?
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Phil Davis |
8:09 25 Apr 05 |
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Miles Nelson |
13:31 25 Apr 05 |
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Miles Nelson |
19:53 25 Apr 05 |
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Phil Davis |
7:15 26 Apr 05 |
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Miles Nelson |
9:59 30 Apr 05 |
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Phil Davis |
16:58 30 Apr 05 |
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Miles Nelson |
18:38 30 Apr 05 |
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Miles Nelson |
6:56 23 Apr 05 |
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