CMYK

A positive is, obviously, the opposite of a negative – that is, it is an image which is not reversed. Positive images are made through a double negative: silver salts react to light producing a negative which, when projected onto photographic paper (more silver salts), produces a positive.

Digital printing that produces images directly on to the material (e.g. canvas or special paper surfaces) from a digital file through a stream of very fine dye drops controlled by the computer system. (See also Giclée prints)

A single image built up from several photographic prints.

Regarded as one of the best digital printers. It uses three lasers (Red, Green & Blue) to print digitised images onto traditional photographic paper. This allows consistent reproduction of large run editions with the same quality as traditional print techniques. This process typically uses C-type paper. Lambda on crystal archive: see Lambda and Fuji colour…

A photogram is a photograph made without a lens or camera: objects are placed directly on top of a sheet of photographic paper which is then exposed to light. Where the objects obstruct the light, the paper remains unexposed (light in tone), while the rest darkens through exposure.

Selenium gelatin photogram: see photogram and selenium toning. Selenium toned gelatin print: See silver gelatin print and selenium toning. Selenium toned photogram: see photogram and selenium toning. Selenium toning: A type of toning using the metal selenium to replace silver salts. Used both for the aesthetic benefits of a slightly warmer tone and greatly improved archival properties