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Cosina Voigtländer Bessa-L
The Bessa family of cameras was manufactured in Japan by Cosina as a revival of the Voigtländer brand name. All the Cosina Voigtländer Bessa models have a double focal-plane shutter with two sets of curtains to prevent damage by the sun. Shutter speeds range from 1 to 1/2000 s and bulb (B), with flash sync at 1/125 s on hot-shoe or PC terminal. They all have TTL exposure metering, and manual exposure; the recent ''R2A'' and ''R3A'' also have an aperture priority automatic mode. Bessa-L and Bessa-T (finderless) The first model was the Bessa-L, introduced in 1999. This was a finderless body with a Leica screw mount. It was introduced with a range of Voigtländer 39 mm screw lenses that were quite inexpensive and said to be of excellent quality. It could of course mount all the wide variety of 39 mm screw lenses by manufacturers as diverse as Leica, Canon, Nikon and even cheaper but often excellent Soviet lenses. The ''Bessa-L'' was mostly intended to be used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viewfinder
In photography, a viewfinder is what the photographer looks through to compose, and, in many cases, to focus the picture. Most viewfinders are separate, and suffer parallax, while the single-lens reflex camera lets the viewfinder use the main optical system. Viewfinders are used in many cameras of different types: still and movie, film, analog and digital. A zoom camera usually zooms its finder in sync with its lens, one exception being rangefinder cameras. History Before the development of microelectronics and electronic display devices, only optical viewfinders existed. Direct optical viewfinders Direct viewfinders are essentially miniature Galilean telescopes; the viewer's eye was placed at the back, and the scene viewed through the viewfinder optics. A declining minority of point and shoot cameras use them. Parallax error results from the viewfinder being offset from the lens axis, to point above and usually to one side of the lens. The error varies with distance, being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bessa 35mm 293054754 3ffbb988ea O
''Bessa'' is a genus of flies in the family Tachinidae The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Over 1,300 species have been described in North America alone. Insects in this family .... Species *'' B. harveyi'' (Townsend, 1892) *'' B. selecta'' ( Meigen, 1824) *'' B. remota'' (Aldrich, 1925) *'' B. parallela'' ( Meigen, 1824) References Tachinidae genera Exoristinae Taxa named by Jean-Baptiste Robineau-Desvoidy {{Exoristinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikon Historical Society
(, ; ), also known just as Nikon, is a Japanese multinational corporation headquartered in Tokyo, Japan, specializing in optics and Photography, imaging products. The companies held by Nikon form the Nikon Group. Nikon's products include cameras, camera lenses, binoculars, microscopes, ophthalmic lenses, measurement instruments, rifle scopes, spotting scopes, and the steppers used in the photolithography steps of Semiconductor device fabrication, semiconductor fabrication, of which it is the world's second largest manufacturer. The company is the eighth-largest chip equipment maker as reported in 2017. Also, it has diversified into new areas like 3D printers, 3D printing and regenerative medicine to compensate for the shrinking digital camera market. Among Nikon's many notable product lines are Nikkor imaging lenses (for Nikon F-mount, F-mount cameras, large format photography, photographic enlargers, and other applications), the Nikon F-series of 35mm format, 35 mm film SLR ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
