Cheers, i have look at it in min. Do i have to remove filter if i put cap back on len?
If you can't see the diameter marked on the lens, it'll probably be marked on the cap. Look for the symbol ø followed by a couple of figures and mm. If you tell us all exactly which lens it is, I'm sure someone will be able to tell you the filter size needed.
18-55 = 58mm filter & 50mm f1.8 = 52mm filter
edit: prob someone will confirm this...
18-55 = 58mm filter & 50mm f1.8 = 52mm filter
edit: prob someone will confirm this...