i would strongly suggest getting a convertor ring to convert your 49mm lens to fit 52mm lens
filters for 49mm are damn hard to find, would be easier to find cpls and IR filters for 52mm.
so far i tried with UV filters and polarizers, no vignetting spotted with 16mm pan cake and 18 to 55mm lens E mount
got mine from orion express at $10 bucks
i would strongly suggest getting a convertor ring to convert your 49mm lens to fit 52mm lens
filters for 49mm are damn hard to find, would be easier to find cpls and IR filters for 52mm.
so far i tried with UV filters and polarizers, no vignetting spotted with 16mm pan cake and 18 to 55mm lens E mount
got mine from orion express at $10 bucks