Photoshop’s Channel Mixer adjusts the relative strengths of the red, green and blue channels. It can be used for colour correction but is most often used when converting colour photos to black and white because it can simulate the effect [...]
Tag Archive for 'Contrast filters'
Used in black and white photography to enhance landscape shots. It does this by darkening blues (skies) without affecting the yellows and greens of vegetation. Black and white film is ‘panchromatic’ – it’s sensitive to all colours – so if you [...]
This is one of the so-called ‘contrast’ filters used in black and white photography. Although the pictures are black and white, the film (or sensor) is sensitive to all colours of light, and by blocking certain colours, it’s possible to [...]
Used for tonal control in black and white photography. ‘Contrast’ filters are used in black and white photography to change the brightness of the different colours in the scene. For example, a ‘red’ filter will cut out much of the [...]