I'm sure I'm not the only person who has experienced this problem, but I do believe this is the first dedicated tread to find out out to solve it. I'm using Voigtlander R3M. The rubber grips on both sides of the lenses are begging to melt and fall it. best ways to get it repaired? When will be a good time to do it? Currently, i'm occassionally finding black gunk rubbing off on my hands. I can still nudge the grip into position; and hope it will stay there. I would really appreciate having a youtube video seeing how someone elses does it; before I give myself another reason to buy another camera.