180-degree rule (or crossing the line) Keeping camera angles on one side of an imaginary line running through the set. Crossing the line can cause confusing discontinuity.

4:4:2 (and 4:4:4) Chroma sampling rates. 4:4:4 means that the color and luminance components of the picture are sampled at the same rate, as is performed in cinematic post-production. With 4:2:2, the two chroma components are sampled at half the rate of the luminance component; this reduces bandwidth by one-third with little or no visible difference.

4K High-definition formats that can process screen resolutions up to 4,096 pixels. Ultra-high definition (UHD) 4K is 3,840 wide, while DCI 4K is 4,096. It has four times as many pixels as current 1080p HDTV.

8K High-definition ...

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