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Optical zoom

Lens

Optical zoom

Optical zoom: the lens really magnifies without losing detail.

Terms on the same topic

Focal lengthFocal length (mm): a small number gives a wide view, a large one a narrow, distant view. Degrees (°) are the horizontal viewing angle.
Lens mountLens mount: the standard that attaches the lens to the camera.
PTZPTZ: a controllable camera that pans, tilts and zooms.
View typeView type: a multi-lens camera films through several lenses, while a fisheye or panoramic one shows a very wide view in one frame.
Zoom typeZoom type: fixed, varifocal or motorised lens.

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