Terminology Compilation

ZOOM LENS

A lens with the ability to change its focal length manually or through the use of a controller to cover a variety of needs.

ZOOM RATIO

The ratio of the starting focal length (wide) to the ending focal length (telephoto) of a zoom lens. A 10X zoom will magnify the image at the wide end by 10 times. Examples of a 10X zoom lenses; 8mm~80mm, 12mm~120mm.


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