๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

AN INSTRUMENT FOR THE MEASUREMENT OF PHOTOGRAPHIC DENSITIES

โœ Scribed by BAZZONI, C. B.; DUNCAN, R. W.; MATHEWS, W. S.

Book ID
115374745
Publisher
Optical Society of America
Year
1923
Weight
622 KB
Volume
7
Category
Article
ISSN
0030-3941

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๐Ÿ“œ SIMILAR VOLUMES

An instrument (densitometer) for the mea
An instrument (densitometer) for the measurement of high photographic densities
โœ Loyd A. Jones ๐Ÿ“‚ Article ๐Ÿ“… 1923 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 140 KB

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

The reproduction of photographic grainin
The reproduction of photographic graininess by the galvanometer of an instrument for density measurement
โœ L.S. Ornstein; A. van Kreveld ๐Ÿ“‚ Article ๐Ÿ“… 1936 ๐Ÿ› Elsevier Science โš– 293 KB

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.