Hey folks!
I need a short hint how to do this. I whant to Mount a Rodenstock APO Ronar 300mm/9 into a Prontor Prof. 1S shutter. The shutters aperture scale starts from 5,6 onwards. But the Prontors have clicks in 1/3 f-stops. Normaly I would think that I start at 9 and count onwards to 11, 16...but is this really correct? It is annoying me that the first step from 9 to 11 is only a 2/3 step!
Any suggestions are welcome!
Sebastian
Bookmarks