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Response to More on film speeds

from Pete Andrews (p.l.andrews@bham.ac.uk)
Yep! That hangover's certainly playing havoc with the old brain cells.
The formula appears to be 1/Exposure*K. Where K is around 1.5. I'd still like the exact figure, please.

250000? Where the heck did I get that from?

(posted 8262 days ago)

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