1.Magnetic Snap-On Magnetic design, aluminum frame, attaches in 1 second 2.Smooth Gimbal Movement Ultra-thin aluminum rim, no need to remove before power off 3.Optical Glass Clarity High transmittance, vivid colors, no distortion or ghosting 4.Multi-Coated Protection Water/oil/dust resistant coating, easy wipe-clean, durable
Cautions. 1. Only UV filters can transmit 98.5 % of light; CPL filters cannot be expressed in terms of light transmission, 2. only CPL /VND filters are adjustable, other filters are not.