…erience with Helios 44-2, especially with a PL mount at the back which obstructs the tiny focusing ring I’ve been using LUX-GEARs for just over a month now and so far they work great. It’s hard to say how long they will last, since their rubbery material, (high-durometer silicone to be more precise) is obviously not as though as metal, but they cost accordingly too and if I need to replace one in a few years time it certainly won’t be a big deal…. Continue Reading