A Neutral Density filter or ND filter is a ''grey'' filter, it appears gray and reduces the amount of light reaching the film or sensor, but does not have an effect on color balance.
The purpose of standard photographic neutral density filter is to allow the photographer greater flexibility to change the aperture or exposure time, allowing for more control, particularly in extreme circumstances such as on a very bright day.
This filter can be used to prevent strong overexposure even when using a slow shutter speed.

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Product Dimensions

Package Dimensions
Width : 4.33 inch
Height : 1.97 inch
Length : 4.72 inch

Item Weight: 5.28 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B01IT539FA