I understand. Believe me, I understand "I like Efke films and nothing else has the same look." What I didn't understand was needing specifically SLOW films in sheets. My fastest 4x5 lens is f/4.7 and that's fast for LF. My other two are 6.8 and 7.7, with the latter being a 203 Ektar, and the one most likely to be used for portraits where I might shoot near wide open. (I love that little lens.) It starts out nearly f/8 and add even a yellow filter, and the fact I don't shoot in bright sun...
I understand loving a film that's going away, believe me. (I found E100G after Astia was axed and then Kodak took it too ) I was just questioning needing a specifically very slow film for large format. Thought I concede some people may.
Well, I confess that I have used the Efke PL 25 M in sheet film. Is there a need for it. Of course not. I used it anyway because I can. I suppose that I could make images without using any film at all, but I like to make images using film. Of course it isn't good to loose any film or paper.
"She's always out making pictures, She's always out making scenes.
She's always out the window, When it comes to making Dreams.
It's all mixed up, It's all mixed up, It's all mixed up."