CPL filters can eliminate reflections from non-metallic surfaces and restore the true color of objects. 

Corresponding to 1-8.6 stops of light reduction (approximately 1-9 stops). 

Ideal for capturing the trails of moving objects, such as clouds, water, and ocean surfaces, during daylight hours. Reducing the amount of light entering a video allows for a slower shutter speed, resulting in a stronger motion blur effect. For example, setting the shutter speed to half the reciprocal of the frame rate—for example, at 30 frames per second, a shutter speed of 1/60th will produce a more pleasant motion blur effect. You can also further reduce the shutter speed to achieve a frame-dropping effect. 

You can stack ND filters. If you stack ND filters, place them first. Note: Stacking filters is more likely to produce vignetting. 

Except for ND2-400, all other filters are compatible with lens hoods.