The K&F Concept Nano-X Series 2-in-1 Filter 82mm stacks a variable ND and a circular polarizer into one piece of glass. You control exposure and reflections at the same time without screwing two filters together and risking vignetting on a wide lens.
The two layers rotate independently, so you can set the polarizer to kill the glare off water, glass or foliage, then dial the density — ND2 to ND32, 1 to 5 stops — until your shutter and aperture land where you want them.
Engineered without the black cross across the usable range, with 28-layer green coating, HD, waterproof and scratch resistant. Threads onto wide-aperture zooms such as 24-70mm f/2.8.
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