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Zoom Corporation was founded in Tokyo in 1983 and in 2004, established ZOOM HK LTD as a logistics base in Hong Kong. In 2009, it set up ZOOM Dongguan Corporation (China) as a quality control operation; [3] 2013, formed ZOOM North America, LLC (US) as a distribution base; 2017, listed on Tokyo Stock Exchange JASDAQ (Standard); [4] [5] In 2018, acquired shares of Mogar Music S.p.A. (Italy ...
The 14 megapixel multi-aspect image ratio GH1 sensor was designed to cover a slightly larger image circle than the native 4:3 image aspect ratio of its 12.1 megapixel cousin in the G1. This means that the GH1 14 megapixel sensor was capable of recording images in user selectable, native aspect ratios of 4:3, 3:2 and 16:9 with no cropping, and ...
(de Sitter effect: see) Geodetic effect (general relativity) Debye–Falkenhagen effect; Decoy effect (consumer behavior) (decision theory) (economic theories) (finance theory) (marketing) Delay (audio effect) (audio effects) (effects units) (musical techniques) Dellinger effect (radio communications) Dember effect (electrical phenomena) (physics)
Early versions of the G1 could only accept the four original lenses (16 mm, 28 mm, 45 mm, and 90 mm). A modified ROM was required to use autofocus with the 21 mm and 35 mm lenses; [ 9 ] modified G1 cameras are marked with a green sticker inside the film door, and are known as "green label" G1s to distinguish them from unmodified "silver label ...
Leica has designed four lenses for the Four Thirds System: fast and slow normal zooms and a 14–150 mm super-zoom, all with Panasonic's image stabilization system, and an unstabilized f /1.4 25 mm prime. These are manufactured and sold by Panasonic. An official list of available lenses can be found on Four-Thirds.org web site. [54]
The Micro Four Thirds system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of 19.25 mm, covering an image sensor with dimensions 17.3 × 13.0 mm (21.6 mm diagonal).
For example, a 100 mm to 400 mm lens may have a maximum aperture of f/4.0 at the 100 mm end but will diminish to only f/5.6 at the 400 mm end of the zoom range. Zoom lenses with constant maximum apertures (such as f/2.8 for a 24–70mm lens) are usually reserved for lenses with higher build quality and are thus more expensive than those with ...
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