I have been using 3M lens cleaning cloth, but i am very shaky about it. everytime i rub it on a filter, it feels like rubber on rubber rather than smooth ice. any good suggestions on which good lens cleaning cloth to use? prefer long-time use cloths, not those disposable ones.
and secondly, lately, i bought a hoya R72. seeing some dust on the inner glass of the filter, i used my 3M cloth to wipe it. to my horror, every wipe i applied, scratches appear!!! any infrared users also experience this problem? is the filter so senstive to touch? or is it just my cloth?
thanks! merry christmas.