Resolution
Resolving power and bandwidth
A television camera converts an image into an electrical signal that will eventually be transmitted. The resolving power required from a TV zoom lens will therefore be related to the maximum frequency of the bandwidth of the signal transmitted plus the specification of the imaging device and line structure. The finesse of detail transmitted will depend on the particular TV standard in use (e.g. 625 PAL; 525 NTSC).
Spatial frequency
Spatial frequency counts the number of black-white pairs of lines contained in 1 mm and is a method of quantifying fine detail in a TV picture.
Modulating transfer function
Modulating transfer function (MTF) measures the range of spatial frequencies transmitted through the lens ...
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