My 35mm lens has apparently caught a couple of sand grains in its focusing ring, and makes a strange grinding sound when turning the ring (AF is OK). Since the lens is already out of warranty, I am thinking about cleaning it myself. When looking for DIY videos, I found a number of similar videos for other Fuji lenses. Please login or register to view links Please login or register to view links Please login or register to view links Please note that any unauthorized work on your Fuji lens will void your warranty - so you're doing this at your own risk. The forum and its staff aren't liable for any damages that these instructions and their execution can cause. Maybe we can compile a small link collection for these videos... I recall that there were several more videos in the initial phase of Fuji X product introduction as aperture ring looseness was an issue that plagued many of the earlier Fuji X lenses... Do you know links to other teardown videos for Fuji lenses, if so, please bring them on.