A week ago I came across this informative piece on the history of lenses including petzvals, Extremely interesting read, haven’t yet gotten around to read
Tag: literature
“Black Art” – 1856
Geert-Jan Heyda was kind enough to share some old material he found on the collodion process, dating from 1856. It was written in such fun
Photography Contrastique - Alternative Photographic Processes 