The Use of Photography in the Cases investigated by Sherlock Holmes

[Tony Parsons]

Besides mentions of photographs (as in A Scandal in Bohemia), I recall one reference to photography:

 

"Oh, he has his faults, too," said Mr. Wilson. "Never was such a fellow for photography. Snapping away with a camera when he ought to be improving his mind, and then diving down into the cellar like a rabbit into its hole to develop his pictures. That is his main fault, but on the whole he's a good worker. There's no vice in him."

 

The Red-Headed League

 

Published in 1891, about 10 years after roll film was invented.

 

Thank you, @don_essedi - by an almost Sherlockian coincidence, this very evening I re-read 'The Red-headed League', and was about to post a comment very similar to yours.