| 释义 |
zoom lens
zoom lensn. A camera lens whose focal length can be rapidly changed, allowing rapid change in the size of an image.zoom lens n (Photography) a lens system that allows the focal length of a camera lens to be varied continuously without altering the sharpness of the image. See also telephoto lens zoom′ lens`
n. (in a camera or motion-picture projector) a lens assembly whose focal length can be continuously adjusted to provide various degrees of magnification with no loss of focus. [1935–40] Thesaurus| Noun | 1. |  zoom lens - a camera lens that magnifies the imagetelephoto lenscamera lens, optical lens - a lens that focuses the image in a camera |
Translationszoom (zuːm) noun a loud, low-pitched buzzing noise. the zoom of (an) aircraft. 嗡嗡聲，隆隆聲 嗡嗡声，隆隆声 verb to move very quickly with this kind of noise. The motorbike zoomed past us. 嗡嗡地或隆隆地疾行 嗡嗡地或隆隆地疾行zoom lens a type of camera lens which can make a distant object appear gradually closer without moving the camera. (照相機的)變焦鏡頭 （照相机的）变焦镜头 zoom in to direct a camera (on to an object etc) and use a zoom lens to make it appear to come closer. Film the whole building first, then zoom in on the door. 鏡頭拉近(某目標)，放大 镜头拉近（某目标），放大 zoom lens
zoom lens a lens system that allows the focal length of a camera lens to be varied continuously without altering the sharpness of the image Zoom Lens a combination of a telescopic attachment and an objective lens, forming an optical system with a variable focal length. The mechanical motions of the individual elements of the telescopic attachment ensure that the image scale of an object varies smoothly within a specified range. The focal length of a zoom lens is varied, but the sharpness of focus of the objective and the relative aperture remain unchanged. Zoom lenses are used most often on motion-picture cameras for creating the illusion that the camera is approaching or receding in cases where it is not desirable to move the camera relative to the object being filmed. Because the aberrations of the telescopic attachment and the objective lens are usually calculated separately, the same attachment may be used with different objective lenses. L. A. RIVKIN zoom lens[′züm ¦lenz] (optics) A system of lenses in which two or more parts are moved with respect to each other to obtain a continuously variable focal length and hence magnification, while the image is kept in the same image plane. Also known as variable-focal-length lens; varifocal lens. zoom lens
zoom lensA type of lens that can be adjusted to focus on near or distant objects.See also: lensZoom Lens
Zoom LensA lens that allows a photographer to focus so that it appears that a picture is closer to or farther away from the viewer. The first zoom lens was developed by Frank Back and was introduced in 1959.zoom lens
Synonyms for zoom lensnoun a camera lens that magnifies the imageSynonymsRelated Words |