As I dive ever deeper in photography history, I come across more and more stuff I've never heard of. Yeterday I received a 1909 guide to photography published by Burke & James (The ABC of Photograpy.) It's fascinating! One of the advertised products is a Watkins Bee Meter. I'm somewhat familiar with the "extinction meters", but this is something a little different. They look pretty cool! Do they actually still work? If I bought one, would it be able to give me an exposure reading I could use with my ISO 25 Efke film? It looks like they were the best meter between 1903 and 1932, when the Weston meter came out. Or, were they mostly just a gimmick?
Kent in SD