Equivalent Lens Diameter

См. также в других словарях:

• Lens speed — refers to the maximum aperture diameter, or minimum f number, of a photographic lens. A lens with a larger maximum aperture (that is, a smaller minimum f number) is a fast lens because it delivers more light intensity (illuminance) to the focal… …   Wikipedia

• diameter — (dia, X, or ×)    a unit of magnification equivalent to power. Power tends to be used in adjective phrases, such as 120 power eyepiece or 7 power binoculars. Diameters often appear in declarative statements of magnification, such as, the eyepiece …   Dictionary of units of measurement

• Normal lens — In photography and cinematography a normal lens is a lens that reproduces perspective that generally looks natural to a human observer under normal viewing conditions, as compared with lenses with longer or shorter focal lengths which produce an… …   Wikipedia

• Canon EF-S 17-85mm lens — Infobox photographic lenses name = EF S 17–85mm f/4 5.6 IS USM maker = Canon feat is = y feat usm = y feat sbf = y feat macro = n feat special = type = s application = Standard flength = 17–85mm (35 mm equivalent of 27.2–136mm) fov = aperture =… …   Wikipedia

• Canon EF-S 17-55mm lens — Infobox photographic lenses name = EF S 17 55mm f/2.8 IS USM maker = Canon feat is = y feat usm = y feat sbf = y feat macro = n feat special = type = s application = Standard flength = 17 55mm (35 mm equivalent of 27 88mm) fov = aperture = f/2.8… …   Wikipedia

• History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

• Mirrorless interchangeable-lens camera — MILCs feature a large sensor in a small body (Olympus PEN E P2) A mirrorless interchangeable lens camera (MILC) is an emerging class of digital system cameras, intermediate between compact digital cameras and digital single lens reflex cameras… …   Wikipedia

• Wide-angle lens — In photography and cinematography, a wide angle lens is a lens whose focal length is substantially shorter than the focal length of a normal lens for the image size produced by the camera, whether this is dictated by the dimensions of the image… …   Wikipedia

• Canon EF-S 18-55mm lens — Infobox photographic lenses name = EF S 18 55mm USM I/II EF S 18 55mm I/II EF S 18 55 IS maker = Canon feat is = Available on the IS version feat usm = Available on the USM version but not on the kit version nor IS version feat sbf = y feat macro …   Wikipedia

• Canon EF 1200mm lens — Infobox photographic lenses name = EF 1200mm f/5.6L USM caption = maker = Canon feat is = n feat usm = y feat sbf = feat macro = feat special = type = p application = Super Telephoto flength = 1200mm fov = aperture = f/5.6 f/32 groups = 10… …   Wikipedia

• Canon EF 500mm lens — Infobox photographic lenses name = EF 500mm f4/L USM caption = From left to right : EF 28 300mm f/3.5 5.6L IS USM, 70 200 f/2.8L IS USM, 300mm f/2.8L IS USM, 500mm f/4L IS USM maker = Canon feat is = y feat usm = y feat sbf = feat macro = feat… …   Wikipedia