Hey there,
I have a Schneider-Kreuznach Beaulieu-Optivaron f1.4/6-70 mm lens and once I remove the Reglomatic motors the aperture ring is really loose. I'm wondering if anyone knows how to give the aperture ring more resistance so that I can use it manually and keep the aperture in place without it being accidentally moved out of position. Is there a dampening ring that can be installed on it or any other tricks? Thanks