I was shooting at Marina and Esplanade yday. Sky was rather blue except for a few patches of clouds, so I was surprised that I felt some water droplets on my skin and thought it could be some slight rain. Anyway I didn't care much and continued shooting. I got some tiny drops on my filters but reckon I will clean them when I get home.
so imagine my disgust when these spots could not be cleaned off, not with water or cleaning fluid. it seems as tho the "rain drops" had dried up, and whatever chemical (could be acid rain, or someone cleaning the building exteriors spraying drops all over the air) got concentrated enough to damage the filter coating... at least that's what i think happened
dunno if its bcos i'm using cheap Hoya filters. lucky its only filters and not front element
any one else experience something like this?