The Tiffen 85/0.9 ND 4 x 4" combination filter combines an 85 amber colour conversion filter and a 0.9 neutral density filter. The ND filtration offers a 3-stop exposure reduction to darken the entire image to enable photography with a wider aperture or slower shutter speed than normally required. The 85 filtration covers the entire filter surface and converts the colour temperature to 3400K for use with Type A (tungsten) film.

This filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and polishing it to a tolerance of 1/10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6 mm.


Features:

- Combination of an 85 amber colour conversion filter and neutral density filter.
- The ND 0.9 filter darkens the image, allowing you to photograph with a slower shutter speed or wider aperture than normally required.
- The 85 filter converts the colour temperature to 3400K, allowing you to use Type A tungsten film in daylight situations.


Specifications:

- Type: Colour conversion and neutral density combination
- Dimensions: 4 x 4" / 101.6 x 101.6 mm
- Grade: 85
- Filter factor: 0.9 (3 stops)
- Effect: ND filter enables longer exposure. 85 filter converts light to 3400K
- Application: For use with tungsten films in daylight situations
- Colour temperature: 5500K to 3400K
- Construction: ColorCore Technology