Definition of telephoto in English:

telephoto

Syllabification: tel·e·pho·to
Pronunciation: /ˈteləˌfōtō
 
/
(also telephoto lens)

noun (plural telephotos)

  • A lens with a longer focal length than standard, giving a narrow field of view and a magnified image.
    More example sentences
    • Regardless of format, a telephoto or zoom lens is a must for serious wildlife work.
    • The best lens to use is the standard 50 mm lens or a short telephoto.
    • Lenses shorter than 50 mm are considered wide-angle lenses; those longer than normal are considered telephoto or long lenses.

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