Term - Log e
|Log e||SWPP and BPPA Photographic Glossary|
Sunday 9th March 2014
Is the logarithmic value ( to the base 10 ) of the relative brightness exposed on the film when undergoing sensitometric testing.
Information provided by: SWPP BPPA
SWPP & BPPA, 6 Bath St, Rhyl, LL18 3EB