Fusion One is a new series of Hoya filters, based on Hoya's new optical technology, which will replace the well-known Hoya PRO1D. Fusion One filters merge all of the innovative core specifications of other series, such as extraordinary light transmission, high-quality optical glass and an ultra-thin frame, with new ones like the ability to repel water and stains.

One-piece frame with front thread. Repels water and stains. Super high light transmission. 18 layers of multi-coating. Filters UV rays before they reach the sensor.

Water Resistance Level: Not Water Resistant. Photo Filter Effect Type: Ultraviolet. Coating Description: Multi Coating. Photo Filter Thread Size: 43 Millimeters. Material: Optical Glass. Brand: Hoya. Country of Origin: Japan. Manufacturer: Hoya. Date First Available: April 13, 2019. Best Sellers Rank: #201 in Camera Lens Sky & UV Filters. Customer Reviews: 4.6 out of 5 stars 53 ratings 4.6 out of 5 stars. Batteries: 1 A batteries required. Item model number: HFOUV043. : B07NJ4619N. Item Weight: 0.95 ounces. Product Dimensions: 1.69 x 1.18 x 1.69 inches.