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1962: Pentax launched the world's first diagonal fish-eye lens for 35mm SLR cameras. That lens was the Takumar 18mm F11 Fish-eye. [1] 1965: Pentax introduced the 6x7 SLR medium format system. 1967: Pentax introduced the world's most efficient fish-eye lens with a maximum brightness of f/4. Takumar Fish-eye 17mm f/4. [2]
Different kinds of camera lenses, including wide angle, telephoto and speciality. A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
Kiron Corporation was a subsidiary of Kino Precision Industries, Ltd., a Japanese manufacturer of photographic lenses.Kiron was based in Carson, California, operating in the 1980s primarily as the United States distributor of Kiron lenses, which were offered in a variety of mounts compatible with many popular 135 film manual focus single-lens reflex camera systems.
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch.
This means the crop factor for X system lenses (based on diagonal angle of view) compared to "full-frame" 135 is 0.79; for example, a X system lens with a focal length of 65 mm would have the equivalent coverage of a lens with a focal length of approximately 50 mm on a "full-frame" camera.
There is no precise definition of the term, but lenses marketed as "standard zoom" usually cover a range of at least 30mm to 70mm in terms of 35mm equivalent focal length with an optical zoom ratio of 2.5× (e.g. 28-70mm) to 5× (e.g. 24-120mm) — the most common being 3× (e.g. 24-70mm). [1]
Wray (Optical Works) Ltd. was a British camera and lens manufacturer based in Ashgrove Road, Bromley, Kent, UK.It operated from 1850 to 1971, making lenses for cameras, photographic enlargers, reconnaissance, mapping, microchip replication, and an anamorphic projection system for cinemas.
The 70-200 mm f/2.8L lens. Canon's series of L lenses (Luxury lenses) are a professional line of photography lenses made by Canon.Canon has sold zoom and prime L-series lenses for the discontinued FD lens mount, for the current EF lens mount used on all Canon EOS SLR cameras and for the RF mount used on mirrorless interchangeable-lens cameras.
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