On my 5x7" Press Graflex, I can do that by setting the shutter on T and releasing it from the lever that is normally used to change the slit size. I would guess you can do something similar on the Super D.
On my 5x7" Press Graflex, I can do that by setting the shutter on T and releasing it from the lever that is normally used to change the slit size. I would guess you can do something similar on the Super D.