Visico Brand Neutral Density ND ND4 filter 52mm

The main purpose of using neutral density (i.e., ND) filters is to reduce the amount of light that can pass through the lens. As a result, if a shutter speed is kept the same, after adding a neutral density filter, a larger aperture must be used to obtain the same exposure. Similarly, if an aperture is kept the same, after adding a neutral density filter, a slower shutter speed must be used to obtain the same exposure.

ND filters help us in at least three situations: (1) reduce the intensity of light; (2) use slower shutter speed; and (3) use larger aperture.

All ND filters are gray in color. The deeper the color, the stronger the effect (i.e., reducing more light).

They are named ND2, ND4, ND8 to indicate reducing 1 , 2, or 3 stops .

This ND4 filter reduces the light by 2 stops

A ND1 filter reduces light by 1 stop

A ND8 filter reduces light by 4 stops

High quality optical glass. Comes on a protective case.

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