单词 | angle of view |
释义 | > as lemmasangle of view angle of view n. Optics and Photography the angular extent of a field of view, esp. that seen through the viewfinder of a camera; the angle subtended at the centre of a lens by two opposite edges or corners of an image. ΚΠ 1800 J. Malton Young Painter's Maulstick 66 By the angle of vision, or angle of view, is to be understood, the expansion of the lines, proceeding from the eye, by the two extreme visual rays embracing the whole extent of the view. 1839 Penny Cycl. XV. 182 Another is the large field, or large angle of view, which may be obtained [under this microscope]. 1876–7 in W. de W. Abney Treat. Photogr. (1878) 207 The diminution of light from the centre towards the margins of the pictures..increases rapidly with any increase of angle of view beyond 40°. 1949 R. H. Alder Movie Making for Everyone vi. 67 Most amazing of all is the ‘Zoom’ lens, in which the angle of view can be changed while the picture is actually being taken. 2003 Outdoor Photographer May 46/2 I use the term ‘angle of view’, because the focal length doesn't actually change. < as lemmas |
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