K&F Concept Polarising Filter 77 mm CPL Filter Circular Slim Optical Glass HD Brass Frame Polarising Filter for 77 mm Sony Canon Nikon Fujifilm Lens Nano Xcel Pro

Brass frame: the frame is made of brass material, CNC pattern design, which greatly improves the hardness and flexibility, and the installation is smooth and durable 0.15% reflectivity: the K&F Concept coating technology gives the filter a very low reflectivity of 0.15%, which ensures good light transmission, reduces stray light and ghosting, prevents glare and does not affect the original performance of the lens 45% transmittance: the filter eliminates 99.2% of polarized light and has a high light transmission of 45% Multi-coating: double-sided 36-layer nano coating, waterproof, dirt-proof and scratch-resistant, for excellent durability of the filters Ultra-thin frame: the frame adopts ultra-thin design, 0.01 mm processing accuracy, is very well adapted to the lens and fixed, so there are no dark corners when attached to wide angle and telephoto lenses.