The K&F Concept 77mm Variable ND2-ND32 and CPL Filter 2-in-1 combines the creative control of a variable neutral density filter with the glare-reducing capabilities of a circular polarizer into a single, high-performance optical glass ring. Designed for lenses with a 77mm front thread, it offers 1 to 5 stops of light reduction (ND2 to ND32), enabling flexible shutter speed and depth-of-field control in bright outdoor daylight. Simultaneously, the integrated CPL function eliminates harsh reflections from water, glass, and metallic surfaces while enhancing color saturation and contrast. Crafted with multi-layer nano-coatings to prevent cross-pattern vignetting and glare, this space-saving filter is perfect for landscape photography and cinematic videography