Product Description
These precision optical glass filters provide control over the depth of field and or the illustration of motion in a shot. In still mode, by rotating the ring, the exposure time can be increased or the aperture opening increased resulting in portions of the shot being creatively blurred. In video mode, rotating the ring can control not only the f-Stop but the shutter speed in bright scenes as well as be used as a fader to begin or end a scene. This filter can reduce the exposure up to 9 stops. Marks on the side of the filter indicate minimum to maximum light reduction. The low profile, rigid aluminum ring allows use on almost any lens without vignetting.
NOTE: When using this filter certain wide angle lenses, it is possible to get an X shaped distortion band. This is a moire pattern. To reduce this effect, use with the normal or telephoto setting on the lens.
