Polarizing filter compatible with 55mm thread enables you to quickly and effectively crack down on unwanted glare control knob for convenient adjustment of polarization level anti-skid ring texture for easy installation and adjustment refined design to eliminate light clearance at the edges made of high quality Japanese optical glass 18-layer HMC (Hard Multi-Coated) thin frame (5mm thick) prevents vignetting on wide angle lenses made of lightweight and durable aluminum alloy.
