Product Review

THE ND FILTERS: Reduce light hitting the sensor, which slows down the camera's shutter speed.
THE ND FILTERS: ND64: This ND cuts light by 6-stops - ND32 cuts light by 5-stops - ND16 cuts light by 4-stops - ND8 cuts light by 3-stops - ND8 cuts light by 2-stops
Creates a more natural-looking motion blur that smoothes out footage and helps reduce the appearance of "jello" effects.
They can also be used for reducing lens flare while shooting into the sun and for toning down highlights while filming outdoors.

POLARIZING FILTER: Helps to reduce glare and improve color saturation.
When filming from a quadcopter, a large amount of light is reflected back up towards the camera.
The polarizer reduces the amount of glare bouncing off the ground.
It can also be used to slow down the camera's shutter speed by reducing light by 1.6 stops.