TY - JOUR
AU - J., C.
AB - THE third Hurter and Driffield memorial lecture was delivered in the theatre of the Royal Society of Arts, before the Royal Photographic Society, on May 9, by Prof. The. Svedberg of Upsala, who took for his subject “The Interpretation of Light Sensitivity in Photography.” After a short general discussion of light sensitiveness from a purely photochemical point of view, particularly with regard to Einstein's law of the photo-chemical equivalent, the lecturer distinguished between afe-sensitiveness, gyatw-sensitiveness, and sensitiveness of the silver-halide material of the grain. The first is the sensitiveness that concerns the practical photographer, but the third, together with some purely physical circumstances, determines the quality of the plate, and is that to which the emulsion maker should devote most of Ms attention. It has been recognised only quite recently that there is a sensitiveness of the haloid which is independent of the physical properties of the film and of the size of the grains or particles.
TI - The Photographic Plate
JF - Nature
DO - 10.1038/109795a0
DA - 1922-06-17
UR - https://www.deepdyve.com/lp/springer-journals/the-photographic-plate-6EstZ6ogju
SP - 795
EP - 795
VL - 109
IS - 2746
DP - DeepDyve
ER -