selling super multicoated uv filters 49mm meco fnd 28 layers, 52mm hoya smc , 62mm k&f 28 layer , 77mm meco fnd 28 layer. all thes filters are in new like condition, practically untouched . these have ultra low reflectivity due to multi coating and becomes almost invisible. besides protecting your expensive lenses they don't degrade the image quality and don't have any color cast.