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Four Thirds logo. The Four Thirds System is a standard created by Olympus and Eastman Kodak for digital single-lens reflex camera (DSLR) design and development. [1] Four Thirds refers to both the size of the image sensor (4/3") as well as the aspect ratio (4:3). The Olympus E-1 was the first Four Thirds DSLR, announced and released in 2003.
Canon New FD lens mounting surface.. The FD lens mount is a breech-lock mount, which is a variation of the common triple-flanged bayonet attachment. The advantage of the breech-lock over the bayonet is that neither the contact surfaces between the body and lens, nor the signalling mechanisms, rotate against each other when the lens is mounted.
General. Dimensions. 120 × 75 × 60 mm, 620 g. The Canon Canonet G-III QL17 is a coupled- rangefinder, leaf-shuttered, fixed-focal-length 35 mm camera first manufactured by Canon in 1972. It features fully shutter-priority automatic exposure and fully manual shooting modes. The Canonet G-III is the third generation of Canonet, following the ...
The camera had a built-in flash, but no focus or zoom controls, as the fixed-focal length lens had an equivalent angle of view as a standard 50mm lens for a 35mm film camera; the fixed-focus lens captured a range from 4 feet (1.2 m) to infinity; [14] autoexposure was set by the camera, which controlled both shutter speeds (ranging from 1 ⁄ 30 ...
Front and rear views of a Canon EF50mm f/1.4 USM. The EF 50mm lenses are a group of normal prime lenses made by Canon that share the same focal length.These lenses are based on the classic double-Gauss lens, [1] with the f/1.8 being a standard six-element double-Gauss with an air gap and powers between element 2 and 3 [1] and its faster cousins adding additional elements. [2]
The Olympus OM System was a line of 35mm single-lens reflex cameras, lenses and accessories sold by Olympus between 1972 and 2002. The system was introduced by Olympus in 1972. The range was designed by Yoshihisa Maitani, chief designer for Olympus, and his staff; OM stands for Olympus Maitani. The nucleus of the system was a series of compact ...
FED 2 with the Jupiter 8 Lens. FED 3 with Industar 61 lens. FED 4 with Industar 61 lens. FED 4 showing the location of manufacture. FED 4 (possibly early model, revision A) with the golden scroll print, showing its M39 mount. The FED is a Soviet rangefinder camera, mass-produced from 1934 until around 1996, and also the name of the factory that ...
In digital photography, the image sensor format is the shape and size of the image sensor. The image sensor format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital cameras are smaller than the 24 mm × 36 mm image area of full-frame 35 mm cameras ...