Angénieux retrofocus
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The Angénieux retrofocus photographic lens is a wide-angle lens design that uses an inverted telephoto configuration. The popularity of this lens design made the name retrofocus synonymous with this t
Nikon Nikkor-H f=2.8cm f/3.5 lens (early 1960s); note large front element, characteristic of inverted telephoto designs
Zeiss (Jena) Flektogon 4/20
Telephoto lens
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A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length of the lens is shorter than the focal length. Thi
Angénieux retrofocus
…name retrofocus synonymous with this type of lens. The Angénieux retrofocus for still cameras was introduced in France in 1950 by Pierre Angénieux. The telephoto lens configuration combines positive and negative lens groups with the negative at the rear, serving to magnify the image, which reduces the back focal…
A collection of telephoto lenses
A 500 mm telephoto lens with extension tube.
A 150–500 mm telephoto zoom lens, physically much shorter than its maximum focal length.
A Canon New F-1 (1981), a 35 mm camera with a telephoto zoom lens with 70-210 mm focal length.