HALFTONE SCREEN A screen placed in front of the negative material in
a process camera to break up a continuous-tone image into a dot formation.
HARD COPY Copy of any kind produced on paper or any substrate except
film, used for proofing, checking, revising, or redrawing.
HARMONY A pleasing arrangement of the picture elements, because of
the similarity of one or more qualities.
HEXAGON A six-sided figure.
HIDDEN LINE Thick, short dashed lines used to show a hidden part or
HIGHLIGHT HALFTONE. See DROP-OUT HALFTONE
HIGH SURFACE See HOT PRESSED.
HINGE JOINT A joint limited to back-and-forth movement.
HOLDING LINE A line usually drawn in black on a mechanical intended
HOOK AND LOOP BOARD A briefing board covered with nylon hook
material to which items backed with a nylon loop material will stick.
HORIZON LINE An imaginary horizontal line representing the observers
line of sight.
HOT PRESSED Also called HIGH SURFACE. A smooth art paper or
HUE The name given to distinguish any color.
HYPO See SODIUM THIOSULFATE.
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