Ads
related to: zoom lens historyalibaba.com has been visited by 1M+ users in the past month
Search results
Results From The WOW.Com Content Network
A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens ( prime lens ). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its focal length changes. [1] Most consumer zoom lenses do not maintain ...
The invention of the camera in the early 19th century led to an array of lens designs intended for photography. The problems of photographic lens design, creating a lens for a task that would cover a large, flat image plane, were well known even before the invention of photography [1] : 23 due to the development of lenses to work with the focal plane of the camera obscura. [citation needed]
Zoomar Lens. 1959 Voigtländer Bessamatic, fitted with DKL-mount Zoomar lens (36~82 mm, f/2.8 ), first production zoom lens for still photography. The Zoomar lens was the first commercially successful zoom lens, designed by optical engineer Frank G. Back as an outgrowth of his research on viewfinders and variable focal length projectors for the ...
Initially, the lenses were equipped with narrow ribbed manual focus rings in hard plastic near the front; zoom lenses had a diagonally-ribbed rubber grip. Later lenses changed the grip style and added a rubber coating to the focus ring. Some of the original lenses were re-released with updated cosmetics and are known as "New" or "Restyled" versions; minor optical updates such as coatings and ...
optical lenses, cameras, and other related products. Voigtländer ( German pronunciation: [ˈfoːktlɛndɐ]) was a significant long-established company within the optics and photographic industry, headquartered in Braunschweig, Germany, [1] and today continues as a trademark for a range of photographic products.
Sony released the following SEL (for: S ony E -mount L ens) lenses for Sony E-mount cameras since 2010. They are also compatible with Hasselblad E-mount cameras. Some of the lenses introduced into the line have been developed in cooperation with Carl Zeiss (as indicated).
The design of a zoom lens is enormously more complicated and difficult than that of a fixed focal length. The performance of the Hopkins designed zoom lens revolutionised television images, especially outdoors-broadcasts and opened the way to the ubiquitous use of zooming in modern visual media.
The increasingly popular 20-50mm zoom range is arguably more versatile than the more established 16-35mm lenses and shares the minimum 2.5× optical zoom ratio of 28-70mm lenses but shifted to a wider field of view. Even some new fixed-lens cameras like the Sony ZV-1 II are switching from a standard zoom lens to a wider zoom lens that covers this range.
Ads
related to: zoom lens historyalibaba.com has been visited by 1M+ users in the past month