They're also still used by collectors of vintage camera equipment. I have a fairly large stash of Press 25's for my Speed Graphic, and some M2's and AG1s that I

They're also still used by collectors of vintage camera equipment. I have a fairly large stash of Press 25's for my Speed Graphic, and some M2's and AG1s that I can use with some of my other cameras. My Agfa Clack uses PF1's, but those aren't as easy to come by these days. It's funny to see the reactions of people who are used to cameras with tiny built-in strobes to the output of a proper flash.