Camera accessories | Camera supplies | SRB Griturn | Photography

A coloured filter used in Black and White photography will lighten any colour that is similar to its own, and darken other colours. A red filter for instance, will make a red post box appear almost white and blue sky as almost black as the relevant colours are either transmitted or absorbed. Green filters are popular for lightening foliage or grass and blue filters are often used to enhance skin tones and texture in portraiture, as they will darken pinks and reds. Pale colours have a subtle effect whereas dark hues effect the image dramatically.

11 Yellowish Green Polyester Filter Used to alter the response of panachromatic emulsions to be equivalent to the natural response of the eye to objects under tungsten light. greens are reproduced slightly lighter in daylight.

3 Light Yellow Polyester Filter Partially corrects for excess blue in aerial photography

12 Deep Yellow Polyester Filters Minus Blue filters. Can be used to cancel blue light when infrared-sensitive films are exposed. Also penetration of haze during aerial photography.

15 Deep Yellow Polyester Filter Increases contrast between cloud and sky for over correction-effect. Also used for copying documents on yellowed paper.

16 Yellow Orange Polyester Filter Gives greater over correction than No.15. Absorbs a small amount of green.

21 Orange Polyester Filter Contrast filter. Absorbs blue and blue/green

23A Light Red Polyester Filter Contrast Filter. Absorbs stronger blue and blue/green.