Just thought I would share my experience with having an MZ-S rehabilitated.
I bought my MZ-S last year, from forum member k100d, for a great price. He warned me ahead of time that the right-hand control wheel was kind of sticky ... part of why it was a good deal. I recall k100d passing on that he had heard it was a common problem that happens with MZ-S that see a lot of use.
I have used and enjoyed the camera since, but having the sticky control wheel limited me to mostly using it in Program mode. Sometimes the control dial would spin freely (to set a shutter speed) but sometimes it would bind up. So, I just ignored it.
I finally decided I wanted the camera to be pristine. I took in to Camtech Photo in Hamilton, Ontario. (I have had good service from them before, on a Rolleiflex and a Yashica Mat.) They fixed it right up for me.
Turns out there is a rubber ring under the control wheel. With age, the rubber has started to disintegrate. The result was that the rubber would foul the rotation of the wheel (not consistently, but it would bind regularly.) So Camtech cleaned it out and lubed it, and reassembled. I suspect the camera is now slightly less weather-sealed, but it works perfectly. The click stops are definte, but the wheel rotates easily with one finger, as designed. I have taken the camera out to shoot a roll since, and I am REALLY loving it now. I love having full control with shutter on the control wheel, aperture on the lens aperture ring, and full Program just a click away. I know that such an operating style seems anachronistic today, when even top-dollar lenses don't have an aperture ring. But using the MZ-S, paired with a lens like the FA 77, is a thoroughly modern experience.
Anyway, I thought I would share, in case another MZ-S user finds the control wheel sticking or binding. It's a simple fix and well worth doing.
Pictures below of the patient after being released from the camera hospital
Last edited by filmamigo; 10-23-2015 at 07:21 AM.