Thread size: 55 mm Outer diameter: 57.3 mm Frame thickness: 7.0 mm Lens thickness: 2.0 mm Coatings: 18 layers Light transmission rate: maximum 88.9% / average 44.4% (average at 400 - 700 nm) Reflection: less than 0.6% (average at 420 - 680 nm) Made in Japan This Circular Polarizing Filter lets 30% more light reach your camera than everyday polarizers while reducing reflections and enhancing color saturation. Crafted for fine lenses, HGX Prime filters are individually ground, polished, and coated. They repel dirt and transmit brilliant light to achieve the clearest possible image. Protective: Repellemax II Anti-static barrier resists dust, dirt, oil, water and fingerprints Best Image: Cutting-edge multi-coatings and black rimmed glass pass the clearest light to your sensor Strong and Durable: Ultra hardened glass with scratch resistant coating Bright: Extremely high visible light transmission to your camera

ProMaster Circular Polarizer - HGX PRIME 55mm.

Water Resistance Level: Not Water Resistant. Photo Filter Effect Type: Polarizer. Coating Description: Multi Coating. Photo Filter Thread Size: 55 Millimeters. Material: Glass. Brand: ProMaster. Manufacturer: Promaster. Date First Available: June 30, 2017. Is Discontinued By Manufacturer: No. Best Sellers Rank: #167 in Camera Lens Polarizing Filters. Customer Reviews: 5.0 out of 5 stars 2 ratings 5.0 out of 5 stars. Item model number: 3216643791. : B073JXZ2C2. Item Weight: 0.16 ounces. Product Dimensions: 0.01 x 0.01 x 0.01 inches.