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Apochromat. Chromatic aberration of a single lens causes different wavelengths of light to have differing focal lengths. An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much more common achromat lenses. The prefix apo- comes from the Greek ...
Petzval portrait lens. The Petzval objective, or Petzval lens, is the first photographic portrait objective lens (with a 160 mm focal length) in the history of photography. [1] It was developed by the Slovak mathematics professor Joseph Petzval in 1840 in Vienna, [2] with technical advice provided by Peter Wilhelm Friedrich von Voigtländer [de].
In North America, Minolta marketed the camera and lenses with the Maxxum branding. Until the mid 1990s, A-mount lenses for the North American market were engraved as Maxxum AF ; the rest of the world were branded as AF lenses, including the regions using the Dynax and α branding for the cameras.
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.
Exposure sheet. An exposure sheet (also referred to as camera instruction sheet, dope sheet or X-sheet) is a traditional animation tool that allows an animator to organize their thinking and give instructions to the camera operator on how the animation is to be shot. It consists of five sections, and is a bit longer and a bit narrower, than A4.
The essential matrix can be seen as a precursor to the fundamental matrix, .Both matrices can be used for establishing constraints between matching image points, but the fundamental matrix can only be used in relation to calibrated cameras since the inner camera parameters (matrices and ′) must be known in order to achieve the normalization.
Perspective distortion. Simulation showing how adjusting the angle of view of a camera, while varying the camera's distance and keeping the object in frame, results in vastly differing images. At narrow angles and long distances, light rays are nearly parallel, resulting in a "flattened" image. At wide angles and short distances, objects appear ...
The Jupiter (Russian: Юпитер, "Jupiter") series of lenses are Russian camera lenses made by various manufacturers in the former Soviet Union. They were made to fit many camera types of the time, from pre- WWII rangefinders to almost modern SLRs. They are copied from Zeiss pre- WWII designs with incremental improvements, such as coatings ...