Sticky frame lines on my M6 TTL
Strange issue: at times, the frame lines on my M6 "stick". When I switch manually using the preview lever, the previously selected lines are still very faintly visible, or the frame lines refuse to change altogether. The problem usually goes away when I take the lens off and put it back on.
When I try the preview lever without a lens mounted, the metal tab in the lens mount moves correctly, so it's not the lever or the tab.
I'm guessing something is gummed up inside. Since I only really use a 50mm it's not an urgent problem, but if this is something that will worsen and/or is a symptom of something more serious, I'd rather be sure sooner than later.