Hi all, yet another beginner question.
I just got myself a used lens and the front element has some circular cleaning smears on it especially right on the edge where its harder to clean and a slight buildup has occurred.
Can anyone give me some tips on what I should or should not do/use? It has that "T" coating which I don't want to destroy. A quick breath on the lens and a wipe with one of those optical microfiber cloths seemed to work ok but i know there is a proper way and would like to learn.