Here is the manual focus ring from my M.Zuiko 14-42mm pancake lens, from my Olympus OMD-EM10.
The lens has been good (very happy with it optically) but recently the zoom action has been – graunchy. On holiday I came home and it was even graunchier (is graunchy a word?) That’s when I noticed the problem. I don’t know if I bashed it or it just gave up the ghost. It’s a fairly plasticky lens and it doesn’t feel like the most robust piece of kit but it did survive a large fall onto the ground over a year ago with just a small dent.
Anyway, having taken these pieces out the zoom action is now silky smooth again but I’m going to have to do without manual focus. I don’t use it often but when I do I really appreciate the focus peaking feature in the EVF and I won’t get that anymore.