K&F Concept Nano-C Series 2-in-1 Variable ND & CPL Filter 77mm, 1 to 5-Stop (KF01.2602)

The K&F Concept Nano-C Series 2-in-1 Filter 77mm 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 18-layer blue coating. Threads onto professional f/2.8 zooms.