Neutral Density (ND) Filter For Canon S2IS, S3IS, & S5IS (Includes Lens Adapter)

Neutral Density filters have four main uses

• To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background

• To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations

• To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure