The relative lightness or darkness of an area. Low values are dark;
high values are light.
paper: A printing paper
in which varying grades of print contrast can be obtained by changing
the color of the enlarging light source, as by the use of filters.
Also called selective-contrast paper. See also graded-contrast
camera: A camera in which
the taking lens forms an image directly on a ground-glass viewing
screen. A film holder is inserted in front of the viewing screen
before exposure. The front and back of the camera can be set at
various angles to change focus and perspective.
1.) A small window on a camera through which the subject is seen
and framed. 2.) A camera that has a viewfinder, but not a rangefinder
(which shows when the subject is focused).
lens: The lens on a camera
through which the eye views the subject.
screen: In a reflex or
view camera, the ground-glass surface on which the image is seen
To underexpose the edges of an image. Sometimes done intentionally
but more often caused accidentally by a lens that forms an image
covering the film or paper only partially.