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SHUTTER — A moving element, usually a disc, which intercepts the light in a motion picture apparatus one or more times for each frame.
Shutter — Working blade — (also variously known as the cutting
blade, obscuring blade, main blade, master blade or travel blade).
That sector which intercepts the light during the movement of
the film at the picture aperture.
Shutter — Intercepting blade — (also known as the flicker blade).
That sector which intercepts the light one or more times while
the film is stationary. SINGLE PICTURE CRANK (sometimes referred to as trick spindle)— A crank on a motion picture camera which makes one exposure at each complete revolution. SLIDE (Stereo slide)— See ^'Lantern SHde." SPLICING — ^Joining the ends of film by cementing. SPOT — The illuminated area on the aperture plate of motion picture apparatus.
SPROCKET — The toothed cylinder which engages the perforations in the film.
STEREOPTICON — A lantern for projecting transparent pictures ; i. e., lantern slides, often a double lantern for dissolving. STILL — A picture without movement; e. g., a picture from a single negative.
TAKE-UP (noun) — The mechanism which receives and winds the film after it passes the picture aperture.
TAKE-UP (verb) — To wind up the film after it passes the picture aperture in motion picture apparatus. THROW — See "Projection Distance."
TILT — To rotate a motion picture camera parallel to the direction of film motion and in a vertical plane through the optical axis. TINTING — Coloring a film by dyeing the gelatine side of it. TONING — Coloring a film by chemical action on the silver image. TRICK CRANK—See "Single Picture Crank." TRICK PICTURE — A motion picture intended to give the effect of action other than that which really took place. TRAILER — That piece of blank film attached to the end of a picture series.
VISION — A new subject introduced into the main picture, by the gradual fading-in and fading-out of the new subject, as, for example, the visualization of a thought.
WORKING DISTANCE— The distance between an object and the nearest face of a lens forming an image of the object.