Reduce the amount of light passing through the camera lens without changing the color of the scene. They are especially useful in bright light conditions to help prevent overexposure. Neutral Density filters also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus.
Eliminates overly bright, washed-out images
Allows slower shutter speeds to produce blurred motion effects
Softens contrast and reduces sharpness, useful to reduce the appearance of blemishes and soften highlights, applicable for high resolution digital cinematgraphy. Adds a pearlscent halo to enhance subject's appearance or produce a desired effect.
Produces a soft clean halation around practical and specular light sources, while keeping an apparent sharpness on the overall image
The Glimmerglass series of filters also has a benefit of sparkling when viewed, which can add reassurance to your talent when shooting beauty; that way you can fully concentrate on the look of your shot.
A combination of hot mirror infrared (IR) control filter and a neutral density (ND) filter. Ideal for HD cameras which have greater low-light sensitivity and greater susceptibility to IR contamination. Ideal for use on HD cameras without an integrated IR-blocking filter.