Abstract
Whenever and wherever plates are sensitometrically tested, the purpose is usually to find a correct hypersensitisation time for a new batch of emulsion. Using a sensitometer and a densitometer, primary information is measured: Fog level, speed at fixed density and gamma. From them, the astronomer will derive other information such as hypersensitisation time (or baking temperature...) and exposure time, using a rule of thumb, such as “the optimum fog density level is 0.3 diffuse”.
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© 1988 Springer-Verlag Berlin Heidelberg
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Maury, A. (1988). New Emulsions and Sensitometry. In: Marx, S. (eds) Astrophotography. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83268-0_13
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DOI: https://doi.org/10.1007/978-3-642-83268-0_13
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