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. K&F CONCEPT 82mm Magnetic Circular Polarizer Lens Circular Polarizer For DSLR 77MM Polarising Filter Circular Polarizing Filter CPL Ultra-Slim - K&F K&f Concept Polarizing Filter Circular Polarizing Filter (CPL) Camera Lens Filter (Nano-X PRO Series). Image of K&F Concept 67mm Circular Polarizer Filter Ultra-Slim 18 Multi-Coated Optical 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 K&F CONCEPT circular polarising filter made of Japan optical glass, deepens the intensity of blue skies, reduces or eliminates glare. Multi-coating reduces reflection, reduce glare and improve saturation. Aluminum alloy frame, ultra slim rim profile to avoid vignetting on wide angle lenses. CPL filters are good for skies, waters, foliage K&F Concept Polarising Filter 82 mm CPL Filter Circular Slim Optical Glass HD Brass Frame Polarising Filter for 82 mm Sony Canon Nikon Fujifilm Lens, Nano-Xcel Pro
