Formatt Hitech Neutral Density (ND) 0.3 HD Filter (6 x 4")

The Formatt 6 x 4" HD Neutral Density (ND) 0.3 Filter has been specially formulated as a result of extensive research into applications for molecular A.C.T. dyes. The filters give more of a neutral gray without the specular effects from the particulate coatings of the current neutral density and neutral density graduated filters, which allows the user more precise control.

HD technology has been targeted towards today's cinema and videographer who are using the latest ultra-sharp cameras and lenses.

Determining which neutral density filter yields ideal results for any given lighting situation takes knowledge, experience and a collection of such filters. Speaking generally, the 2-stop value (ND 0.6) effectively compensates average situations.

Formatt, a company with three generations of professional filter-making experience produces every filter to the highest technical standards. The finest materials, together with state of-the-art production technology have resulted in a standard of optical excellence unmatched anywhere else.

Neutral Density Filters Have Four Main Uses

To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars

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

Neutral Density Factors

ND.3 (exposure adjustment = 1 stop, reduces ISO 1/2)

ND.6 (exposure adjustment = 2 stops, reduces ISO 1/4)

ND.9 (exposure adjustment = 3 stops, reduces ISO 1/8)

ND1.2 (exposure adjustment = 4 stops, reduces ISO 1/16)