Contrast filter

-Contrast filters - filters used in black and white photography to darken or lighten the films rendition of particular colors in the subject.

Contrast filter
A coloured filter used on a camera to lighten or darken selected colours in a black and white photograph. For example , a green filter used to darken red flowers against green leaves.

Low-Contrast Filter
A camera filter that reduces contrast by adding subtle fog in dark areas.
Low-angle Light
The ideal Key, especially when Motivated, for villains, monsters and nymphs bathed by sun reflected from limpid pools.

USING CONTRAST FILTERS
Single-coloured contrast filters can be used on your DSLR to give better monochrome shots, but you may have to set the camera to black & white. You may also have to shoot JPEGs depending on your camera.

Contrast filters should be used for black-and-white photography for which of the following reasons 1. To exaggerate a color 2. To reduce a color 3. To eliminate a color 4. Each of the above 2-49.

Kodak Contrast Filter Kit
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Tiffen Ultra Contrast Filters
Tiffen won an Oscar (or maybe it was an Emmy) for these filters. They figured out a way to make this filter so that it did not add a foggy look or reduce resolution while adding flare.

The Tiffen Ultra Contrast filters are intended to reduce the contrast of an image. They are made of milky white glass (like a dirty window) that will bring up the value of the shadows in an image.

I've found that by using the development and exposure method described above on Polymax paper using Polymax contrast filter #2, that I gain one full zone (or stop) more range on the highlights in both tone and detail, ...

The B/W Conversion: Dynamic Contrast filter includes a Contrast Enhancer slider that's used as the name implies.

In the printing process you can try to fix this with high contrast filters that but overall you will end up loosing a lot of the grayscale. There values look unnatural compared with that of a well exposed negative.

VARIABLE CONTRAST PAPER - Photographic paper of differing grades of contrast when exposed through special contrast filters.

There are six major types: Y (Yellow), Y/G (Yellow/Green), G (Green), O (Orange), R (Red) and the not so frequently used B (Blue), for portraits, to strengthen skin tones and bring out more detail in faces. Contrast filters improve the separation of ...

See also: Filter, Contrast, Photograph, Exposure, Photography