The major industrial use of silver is as silver halide in the manufacture of photographic film. In 1983, approximately 44% of silver was used in the manufacturing of chemicals for photographic products in the USA. Other industrial uses of silver include the production of electrical contacts and switching gear, batteries, catalysts and mirrors. It has also been used for jewelry, coins and indeli...

The expression “chemigram” is attributed to Pierre Cordier (1958) [1]. The term generally refers to the use of black and white photochemistry to create abstract images on black and white photographic papers in subdued room light. Colours in the images are usually, though not exclusively, generated due to complex oxidation-reduction byproducts and local physical development effects. This paper d...

The APM Bright Galaxy Catalogue lists positions, magnitudes, shapes and morphological types for 14,681 galaxies brighter than bJ magnitude 16.44 over a 4,180 square degree area of the southern sky. Galaxy and stellar images have been located from glass copy plates of the United Kingdom Schmidt Telescope (UKST) IIIaJ sky survey using the Automated Photographic Measuring (APM) facility in Cambrid...

Two experiments were conducted to investigate the geometrical structures of photographic and stereoscopic spaces. In Experiment 1, it was investigated how accurately photographic space reproduces real physical space, and the geometrical structure of photographic space was compared with that of visual space. As a result, the mapping function of distance between photographic and physical spaces (...

Digital photography has the potential to supersede conventional film photography. In order to realize this potential, digital photography needs to provide the best image quality and highest utility. We have used our modeling of photographic systems and our experimental measurements of CCDs in order to estimate the photographic potential of specific CCDs. We have also extrapolated the future req...

Guidelines for the digital conversion of transmissive content (negatives and positive slides) in the cultural heritage community have lagged behind those for print content. The primary reasons for this are twofold. Unlike print material, transmissive content is generally an intermediate format (as with negatives) or requires a viewing mechanism (such as a projector). In either case, there is no...