In optics, a diffuser is any material that diffuses or scatters light in some manner to transmit soft light. Diffused light can be easily obtained by reflecting light from a white surface, while more
Effects of a diffuser in close-up photography (for more information, see file description)
Diffuser on a camera flash. Made from a sheet of paper, a rubber band, and two staples.
A more formal diffuser filter over a camera flash, flanked by reflectors
Flash diffuser to be mounted on a camera
In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square or oblong shape and mounted
Diffuser (optics)
…photographers, since harsh light and hard shadows are usually not considered flattering in a portrait. "Diffusion filter" may also refer to a translucent photographic filter used for a special effect. When used in front of the camera lens, a diffusion filter softens subjects and generates a dreamy haze. This effect can also…
Four photographic filters (clockwise from top-left): an infrared hot mirror filter, a polarizing filter, and a UV filter. The larger filter is a polarizer for Cokin-style filter mounts.
Markings on Hoya multicoated skylight filter, identifying size and equivalent Wratten number (1A)
An extreme case: a Nikon D700 with a smashed filter which may have saved the Nikkor lens beneath. Usually, all that can reasonably be expected is protection from scratches, nicks and airborne contaminants.