carstenw wrote:
carstenw wrote
Bonus points for whoever can tell me how to get that white crud out of the grooves in the focusing ring rubber. I got a whole slew of interesting suggestions for this, and decided to try them one at a time, in the order of mildest to harshest, but ultimately the simplest thing ended up working really well: warm water with mild soap. I suppose the cotton swap rubbing action cleanses and the glycerine lubricates. I used a liquid hand soap.
Congratulations! Yes, the liquid soap or shower gel - one of the best final processing with this rubber rings