Yellow

The mildest of the contrast filters for black and white photography, yellows produce the most natural tonal range.

By absorbing ultra-violet, violet and blue it moderately increases contrast in sky, foliage and architecture photography.

It's natural tone reproduction in landscapes, cityscapes and portraits make very it useful for all daylight exposures.

Orange

Orange is the 'medium' of the contrast filters for black and white photography.

Milder than red and stronger than yellow, it completely eliminates ultraviolet, darkens blues and greens and is excellent for telephotography of mountain and marine scenes.

Green

This filter for black and white photography is the most effective for portraits. By darkening red and absorbing green and green-blue, skin and lips are rendered to the natural tone as seen by the eye.

With it's green subduing effect, these filters are especially suited to outdoor scenic, lightening and increasing foliage detail.

Red

The most popular family of contrast filters for black and white photography, they create dramatic effects by brightening red and orange while darkening blue and blue-green in sky, water and architectural scenes.

With underexposure, red filters may be used to simulate a moonlit scene at midday.

With infrared film, red filters give extreme contrast to skies, turning foliage white and cutting through fog and haze. .