today just saw my friend using nikon (i think) c-pl, the thread size is stated 77mm, but the glass is bigger, like 82mm. when use on 19mm lens, no vig.
mine is konix, 77mm, but when used with 19mm lens, can see vig.
so which is cheaper, 1) slim c-pl or 2) use step up ring and use c-pl that is 1 size bigger?
pls advice me, thanks.