I have a question for Dan Fromm, if you are around.
I finally have my metric thread cutting gears. They are much traveled, made in Australia which metricated in 1966, in my baggage from Australia through South America countries to Michigan.
Query, As I think Dan can answer - if worthwhile and save me going into a dead end here.
If I machine an adaptor to orient the Rodenstock Rogonar-S 1:2.8 50mm M39 thread, to the year 1957 Prontor-SVS shutter, the distance from the rear element (lens thread end) to the iris will be approx 15mm.
Now I can make the shutter face the real world, and the nose of the Rogonar will point to the film; I can adapt that assembly to the Graflex lensboard of my home brew camera. That is, the lens will be inside the camera, and the shutter will be on the outside of the lens board. Of course I can place the longitudinal register for infinity focus.
What will be the approximate image circle?
Will the distance to the shutter/iris affect sharpness too much?
Edit Oh, I realize I can hold the iris of the shutter open and use the stop in the lens!
But my queries still stand....
Last edited by wombat2go; 09-12-2013 at 09:14 PM. Click to view previous post history.