The 77mm K&F Concept Nano-X Magnetic ND8 Filter comes with a magnetic adapter ring and a magnetic lens cap in a compact storage case. The adapter ring screws onto lenses that have 77mm front filter threads. The ND8 filter then magnetically attaches to the adapter ring and is just as easily removed when you want to swap in a different magnetic filter from K&F. The lens cap can be magnetically attached to the ND8 filter when you're done shooting and is also threaded for direct attachment to lenses.

The ND8 filter reduces the amount of light entering the lens by three stops, darkening the image a bit and creating a corresponding amount of cinematic motion blur in moving objects shot outdoors. The ND filter allows you to use longer exposures and slower shutter speeds. The filter features glass optics with 16 layers of coating with anti-reflection green film. The multicoating ensures optimal image quality and protects from water, oil, and scratches. The aluminum frame of the filter is ultra-slim and has a knurled exterior so you can better grip it with your fingers.