单词 | telephoto lens |
释义 | > as lemmastelephoto lens 1. Designating a compound camera lens in which the individual lenses are combined in such a way that the focal length of the lens is greater than its physical length, providing a relatively narrow field of view and powerful magnification. Also more generally: designating any camera lens that provides a narrower field of view and greater magnification than a standard lens. Chiefly in telephoto lens. Cf. telephotographic adj.2 1.The first practical lens of this type was patented in 1891 by English optician Thomas Rudolphus Dallmeyer (1859–1906). ΘΚΠ society > leisure > the arts > visual arts > photography > [adjective] > types or methods generally tithonographic1842 instantaneous1851 ferrotype1857 telephotographic1892 telephoto1893 telephotal1904 tabletop1914 time-lapse1926 multiflash1939 synchro-sunlight1940 tele1954 lowlight1984 1893 Amer. Amateur Photographer Jan. 39 There has been added to these a table of the angles and foci of the tele-photo lens of Thos. R. Dallmeyer. 1900 H. M. Wilson Topogr. Surveying xli. 869 An attachment called a telephoto combination, which consists in the addition of a negative or magnifying element in the rear of the combination proper. This produces larger images of distant objects. 1920 H. E. Ives Airplane Photogr. xxxi. 383 The telephoto lenses used for spotting would be of long equivalent focus..but of handy size. 1947 A. Ransome Great Northern? i. 17 He would have..a camera with a telephoto lens to take photographs of birds without having to come near enough to disturb them. 2005 Digital Photographer No. 31. 54/1 Many professional telephoto lenses employ a vibration reduction system to eliminate the effects of camera shake. < as lemmas |
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