The Sigma WR Ceramic Protector filter is constructed from Clear Glass Ceramic, an extremely tough crystallized glass, resulting in a highly protective clear glass filter. The advanced construction, with its outstanding strength, features the high transmittance required of optical devices whilst combining exceptional hardness and greater flexibility than sapphire crystal glass.
The Sigma 95mm WR Ceramic Protector is an ideal protection for photographers who frequently handle their optical lenses and need both durability and scratch-resistance.
