A statistical theory is given of the connection of the graininess of the photographic negative and the flu ctuations of the density measured with an arrangement containing a galvanometer. This theory is applie d to the microphotometer and the graininess-m eter.
An Instrument for the Measurement of the Graininess of Photographic Materials
โ Scribed by LOWRY, E. M.
- Book ID
- 115375771
- Publisher
- Optical Society of America
- Year
- 1936
- Weight
- 899 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0030-3941
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
\โข nEN a photographic deposit is examined under the microscope, it is found to be made up of a large number of minute particles consisting of metallic silver which have been reduced from the silver halide by the action of the developer . It is necessary to employ a relatively high magnification in o
existence of statistical variation of sensitivity among silver halide grains is discussed. For photolysis in a homogeneous system, a mathematical expression is developed relative to the density-exposure function and has the formula D' = -In [ e-L',n + (I \_ 'z-D,+ &+"J]+ 1'1 le relation of statistic