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The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...
The Mamiya 645 camera systems are a series of medium format film and digital cameras and lenses manufactured by Mamiya and its successors. They are called "645" because they use the nominal 6 cm x 4.5 cm film size from 120 roll film. They came in three major generations: first-generation manual-focus film cameras, second-generation manual-focus ...
Main features. The Olympus OM-2 is an aperture-priority automatic-exposure camera (with full manual operation selected via switch), based on the earlier, successful Olympus OM-1 body. The OM-2 was introduced in 1975, [ 1] and combined the light, sturdy camera body style of the manual-only OM-1 with a new automatic exposure system.
Porro prisms are most often used in pairs, forming a double Porro prism. A second prism rotated 90° with respect to the first, is placed such that light will traverse both prisms. The net effect of the prism system is a beam parallel to but displaced from its original direction, with the image rotated 180°. A double Porro system provides four ...
In the first type, the blue image is not laterally inverted but the other two are. A three-CCD ( 3CCD) camera is a camera whose imaging system uses three separate charge-coupled devices (CCDs), each one receiving filtered red, green, or blue color ranges. Light coming in from the lens is split by a beam-splitter prism into three beams, which ...
The Micro Four Thirds system ( MFT or M4/3 or M43) (マイクロフォーサーズシステム, Maikuro Fō Sāzu Shisutemu) is a standard released by Olympus Imaging Corporation and Panasonic in 2008, [ 1 ] for the design and development of mirrorless interchangeable lens digital cameras, camcorders and lenses. [ 2 ] Camera bodies are ...
A system camera or camera body is a camera with interchangeable components that constitutes the core of a system. Early representatives include Leica I Schraubgewinde (1930), Exakta (1936) and the Nikon F (1959). System cameras are often single-lens reflex (SLR) or twin-lens reflex (TLR) but can also be rangefinder cameras or, more recently ...
Mount: Standard B4 lens mount for popular digital cinematography prime and zoom lenses; Weight: 4.3 kg including 2" viewfinder and FilmStream adapter; Overall dimensions: 197mm x 117mm x 349mm; Optical filters: f1.4 prism system; first filter wheel clear, 2-stop, 4-stop, 6-stop ND; second filter wheel clear, 4-point star, 6-point star, soft focus