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Hi! Just recently discovered btz incident light metering system of exposure and development. I came across a copy of BTz (198o's) Have been using the incident system and foud it very good would like to know if you have exposure and development charts for Ilford FP4 125 asa and D76 1:1 developer? Thank you for any information.
Also how does the use of filters affect the exposure and dev using the above system David Holyoake
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