ND400

Product Description

Athabasca ND400

ND, short for neutral density, refers to filters that reduce entry of light without color deviation. ND filters is are important tools to reduce light entry, with which photos can be taken with large aperture and shallow depth of field in the bright light. With higher coefficient, long time exposure can be realized.

Main functions:

In the bright light, we cannot adapt large aperture so shallow depth of field cannot be achieved, which is needed in shooting portraits in order to separate the main character from the background, when large aperture should be adapted. In this situation, ND filters are good choice to attain ideal aperture.

ND400 0.25%(1/400) of light is allowed in or 99.75% is blocked out

ND1000 0.1%(1/1000) of light is allowed in or 99.9% is blocked out

Materials: Environmentally oxidized aviation aluminum

Raw materials: Japan imported optical glass

Coating: Light reducing coating

Thickness: 3.38mm

Applicable diameter: 67mm 72mm 77mm 82mm