Christie CP2000-SB User Manual page 159

Section 1: Introduction
3:2 PULLDOWN
A frame sequence used to map 24 fps film to 30 fps video (or 24/1.001 to 30/1.001 fps) in which every second film
frame is represented by three video fields instead of two, the third being a repeat of the second. This leads to a set of ten
video fields for each four film frames.
ACTIVE LINE TIME
The time, inside one horizontal scan line, during which video is generated.
ACTIVE PICTURE
The area of a video frame which carries image information. As an example, a total frame size of 1125 x 2200 pixels
may have an active picture of 1280 active lines and 1920 samples per active line. Compare to production aperture.
ALTERNATIVE CONTENT
Non-cinema program material such as concerts, plays, sporting events, and potentially corporate training or conferenc-
ing, presented in theatres in addition to motion picture exhibition. Alternative content connects to one of the projector's
DVI ports.
AMBIENT LIGHT REJECTION
The ability of a screen to reflect ambient light (i.e., light within a room from a source other than the projector) in a
direction away from the line of best viewing. Curved screens usually have better ambient light reflection than do flat
screens.
ANAMORPHIC
Having or requiring a linear distortion, generally in the horizontal direction. Anamorphic lenses restore a scope
(CinemaScope) or flat format film frame to the correct appearance by increasing its horizontal proportion. The CP2000
uses a 1.25x scope anamorphic lens option.
ANSI
The American National Standards Institute is the organization that denotes the measurement standard for lamp
brightness.
ANSWER PRINT
A print made from the cut original (camera) negative with proposed final color timing and soundtracks, furnished by
the printing lab to the producer for acceptance of image and sound before screenings and manufacturing begin. A check
print is similar, but is made from the internegative. A blacktrack answer print has no soundtracks.
ASPECT RATIO
The ratio of the width of an image to its height, such as the 4:3 aspect ratio common in video output. Can also be
expressed as a decimal number, such as 1.77, 1.85 or 2.39. The larger the ratio or decimal, the wider and less square the
image.
A-2 CP2000-SB User Manual
020-100162-06 Rev. 1 (03-2014)