The Tiffen 4 x 5.65" ND 1.5 graduated neutral density (ND) filter allows the photographer to adjust exposure without affecting colour balance.

Neutral density filters are available in 1, 2, 3 or 4 stops to suit individual situations.

It is often necessary or desirable to balance the light intensity of one part of a scene with another. This is particularly true in situations where you do not have complete control over the lighting, such as in bright and contrasty landscapes. Exposing for the foreground will produce a washed-out and overexposed sky, whilst exposing for the sky will leave the foreground dark and underexposed. This filter allows cloud detail in the image to be correctly exposed.

Determining which graduated neutral density filter gives ideal results for a given lighting situation requires knowledge, experience and a collection of such filters. Choose the filter strength that adjusts the lighting to remain within the exposure latitude (greatest difference between light/dark values) that still shows detail in the digital or film medium being used.

The Soft or Hard label indicates the degree of colour graduation. Horizontal/Vertical indicates the direction of graduation.

Tiffen's ColorCore glass is produced by a process that involves permanently laminating the filter material between two pieces of optical glass that are ground flat to tolerances of a ten-thousandth of an inch, then mounted in precision aluminium rings.

Neutral density filters have four main uses
-To enable the use of slow shutter speeds, particularly with high ISOs, to record movement of subjects such as waterfalls, clouds or cars
-To decrease depth of field by allowing the use of wider apertures, which helps separate subjects from their background
-To decrease the effective ISO of fast films (above 400 ISO) and allow their use outdoors in bright situations
-To allow cine and video cameras (which have fixed shutter speeds) to film subjects like snow, sand or other bright scenes that could cause overexposure

ColorCore Technology
-Tiffen's ColorCore glass is sealed between two sheets of optical glass. In this way, Tiffen can better control the different densities of their filters and thus create more precise degrees of filtration. This process allows greater colour accuracy compared to simply tinted glass which can be subject to deviations during the tinting process

Superior Quality
-The biggest Hollywood film studios trust Tiffen filters for their multi-million pound productions. Superior quality and design make Tiffen the preferred choice of filmmakers, professional photographers and even NASA
-Tiffen has also received an Emmy from the Academy of Television Arts and Sciences for its engineering excellence