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It was the first super-wide angle zoom lens for still cameras (most 35mm SLRs). Previously, combining the complexities of rectilinear super-wide angle lenses, retrofocus lenses and zoom lenses seemed impossible. The Sigma's all-moving eleven element/seven group/three cell formula was a triumph of computer-aided design and multicoating. [114]
The advent of the Biogon opened the way to more extreme wide-angle lenses. Bertele continued to develop his design, patenting an asymmetric wide-angle lens in 1952 that covered an astonishing 120° angle of view "and beyond, practically distortion free", by adding a strong negative meniscus front element to the Biogon design, showing influences from earlier fisheye lens designs, including the ...
Also, wide-angle lenses for narrow-gauge movie cameras had to be of this type because of the shutter mechanism that had to fit in between. [2]: 142–143 In still photography, a single-lens reflex camera requires a space for the reflex mirror, imposing a limit on the use of wide-angle lenses of symmetric designs. The retrofocus lens addressed ...
When Moment announced an anamorphic lens, it really caught my attention. After all, the film Tangerine was shot on an iPhone 5S using an anamorphic lens from Moondog Labs, so I was excited to try ...
Cross-section of a typical retrofocus wide-angle lens. Extreme or ultra-wide-angle lens - a wide-angle lens with an angle of view above 90 degrees. [4] Extreme-wide-angle lenses share the same issues as ordinary wide-angle lenses but the focal length of such lenses may be so short that there is insufficient physical space in front of the film ...
[8] [9] [10] Stephen Gandy notes the "Nokton was one of the very best fast lenses of the 50's, even a good performer by today's standards." [11] The initial set of accessory lenses, the Ultragon wide-angle and the Telomar telephoto, were each attached to a reflex housing to assist focus; the Telomar also was designed by Tronnier. [12]
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