Hoya L37 UV Sharp Cut Filter – 370nm Blue Light & Haze Reduction Glass Model:O56 This double-ring design is thin

This double-ring design is thin to reduce the likelihood of vignetting with wide-angle lenses

Filter Factor: 10 stops Glass Type Hoya Optical Multi Coatings Yes Hardened Top Layer: No Waterproof / Oil repellent Yes Frame Construction: Low Profile / Aluminum Front Filter Threads: Yes

For using the polarizer

purchase the next larger size and use an appropriate step-up ring

L Series (L37-L42): Long wavelength pass filters

Hoya L37 UV Sharp Cut Filter – 370nm Blue Light & Haze Reduction Glass Model:O56 This double-ring design is thinProfessional Sharp Cut Filters for Cameras & Optics > Camera & Optic Accessories > Camera Lens Accessories > Camera Lens Filters Applications HOYA CANDEO sharp cut filters are long pass optical glass filters designed to block shorter wavelengths of light and allow longer wavelengths to pass. This professional grade HOYA optical filter is engineered for high precision wavelength control in industrial imaging, machine vision, and scientific research.