The practical index of photographic exposure
Subtitle: with an appendix as to sensitometer numbers and rapidity of plates
By: by A.R. Wormald
Publisher: Published by the author and may be obtained of all photographic dealers
Published: 1888
Place of publication: Sutton, Surrey
Language: eng
Number of pages: 30
Subjects: Photography; Exposure; Optical instruments
Notes: Advertisements at front and back.