Well the Hex 50 1.7 has just arrived (ahead of the adapter). The glass looks good and the blades move well. Unfortunately the rubberised focus ring grip, slips slightly, it seems to have lost adhesion to the metal barrel of the lense. Has anybody else experianced anything similar and how have you resolved it?
there are two solutions one is to get some short wide rubber bands and put them between the offending rubberized ring and barrel also take the ring off and clean it of any oily residue that may have "sweated" off the decades old syn-rubber also the metal barrel , dry well and se if its not a little better
if all else fails try a little glue smear some on the barrel and some on the inside of the ring
let them evaporate a little and mount then turn to smoothe and further evaporaton
check for good registration and leave it alone for 24 hrs while it sets
protect the rest on the lens from glue with some masking tape or other method and dont overgop the areas you are mating