A particular type of reversal (R-type) colour paper and printing process which gives strong colours (often with striking reds) and creates a long-lasting print. Printing in this way from a positive image results in exactly the same colour saturation as the original, and greater contrast.
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.
Resin-based paper Plastic-based paper type. The most common paper type for printing colour images as it gives greater gloss potential than fibre-based papers (e.g. supergloss on Fujiflex). R-type paper R-type papers work in the opposite way to traditional papers. A transparency (positive) is projected onto reversal paper which thus develops a positive image.
A single image built up from several photographic prints.
Different types of photographic paper have varying degrees of susceptibility to fading over time. The main cause of this is exposure to UV (ultra violet) light, although humidity, temperature, pollution and acidity are all contributing factors. Exposure to direct sunlight should be avoided, and UV-resistant glass can be used when framing.
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
