Quote Originally Posted by Steve Smith View Post
Ian, is this the same for yours? If so, it will give me some assurance if my f45 ends up in the same place!

Steve.

Just checked and yes f45 is the minimum it'll stop down to. Luckily f stop markings on rimset Compur, Copal, Epsilon, Prontor are evenly spacesd. older dial set lenses have scales which are circular versions of your second drawing.

Ian