The action of exposing; the fact or state of being exposed. Photography. The exposing of a sensitized surface to the action of actinic rays (see e…

an exposure for longer than the maximum normal shutter setting, typically involving a separate operation to close the shutter after it is opened.

Photography. The exposure corresponding to the inertia point, from which the Hurter and Driffield speed of an emulsion may be calculated.

Photography. The range of exposures for which an emulsion, printing paper, etc., will give acceptable contrast; spec. the ratio (or its logarithm)…

Photography. In full filter factor. A numerical measure of the darkness or density of an optical filter, equal to the ratio of the exposure…

a numerical measure of the darkness or density of an optical filter, equal to the ratio of the exposure required with it in place to that required…

the point in which the straight-line portion of the characteristic curve cuts the horizontal (log exposure) axis when produced.

the difference in the density of an emulsion when it is exposed intermittently from that resulting from a continuous exposure (the total light…

Used, usually attributive, with reference to a way of measuring and expressing the speed of photographic emulsions devised by Scheiner, as Scheiner…

Photography. The range of exposures (defined as the product of the light intensity and the time) over which a photographic material will give an…