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Kiron Lenses
Kiron Corporation was a subsidiary of Kino Precision Industries, Ltd., a Japanese manufacturer of photographic lenses. Kiron was based in Carson, California, operating in the 1980s primarily as the United States distributor of Kiron lenses, which were offered in a variety of mounts compatible with many popular 135 film manual focus single-lens reflex camera systems. Kino Precision was founded in 1959 and by the time Kiron was organized in 1980, Kino Precision had gained experience manufacturing lenses sold by Vivitar, including several marketed under the latter company's premium "Series 1" line. After Kino Precision decided to market lenses directly, the Kiron name was adopted for the lenses and the distributor. Kiron lenses enjoyed a fine reputation, driven by positive reviews and an award-winning advertising campaign led by Chiat/Day. After 1985, following the introduction and subsequent explosive popularity of autofocus SLRs, the market for manual focus lenses shrank, and Kiron c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Lens
A camera lens, photographic lens or photographic objective is an optical lens (optics), lens or assembly of lenses (compound lens) used in conjunction with a camera body and mechanism to Imaging, make images of objects either on photographic film or on other media capable of storing an image Photosensitivity, chemically or Image sensor, electronically. There is no major difference in principle between a lens used for a still camera, a video camera, a telescope, a microscope, or other apparatus, but the details of design and construction are different. A lens might be permanently fixed to a camera, or it might be interchangeable lens camera, interchangeable with lenses of different focal lengths, apertures, and other properties. While in principle a simple lens, simple convex lens will suffice, in practice a compound lens made up of a number of optical lens elements is required to correct (as much as possible) the many optical aberrations that arise. Some aberrations will be prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B&H Photo
B&H Photo Video (also known as B&H Photo and B&H and B&H Foto & Electronics Corporation) is an American photo and video equipment retailer founded in 1973, based in Manhattan, New York City. B&H conducts business primarily through online e-commerce consumer sales and business to business sales, as they only have one retail location. While initially a photo and film shop, B&H has grown into one of the largest electronic retailers in the U.S., selling over 400,000 products. Their warehouse is located in Florence, New Jersey. History B&H opened in 1973 as a storefront film shop at 17 Warren Street in Tribeca, and took its name from the initials of owners Blimie Schreiber and her husband, Herman. Later in the 1970s, B&H moved to 119 West 17th Street between Sixth and Seventh Avenues in the Photo District and began to expand its stock to a wider range of film and photography products. In the 1990s, the company began selling various electronics, including computers, lighting, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephoto Lens
A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length of the lens is shorter than the focal length. This is achieved by incorporating a special lens group known as a ''telephoto group'' that extends the light path to create a long-focus lens in a much shorter overall design. The angle of view and other effects of long-focus lenses are the same for telephoto lenses of the same specified focal length. Long-focal-length lenses are often informally referred to as ''telephoto lenses'', although this is technically incorrect: a telephoto lens specifically incorporates the telephoto group. Construction A simple photographic lens may be constructed using one lens element of a given focal length; to focus on an object at infinity, the distance from this single lens to focal plane of the camera (where the sensor or film is) has to be adjusted to the focal length of that lens. For example, g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wide Angle Lens
In photography and cinematography, a wide-angle lens is a lens covering a large angle of view. Conversely, its focal length is substantially smaller than that of a normal lens for a given film plane. This type of lens allows more of the scene to be included in the photograph, which is useful in architectural, interior, and landscape photography where the photographer may not be able to move farther from the scene to photograph it. Another use is where the photographer wishes to emphasize the difference in size or distance between objects in the foreground and the background; nearby objects appear very large and objects at a moderate distance appear small and far away. This exaggeration of relative size can be used to make foreground objects more prominent and striking, while capturing expansive backgrounds. A wide-angle lens is also one that projects a substantially larger image circle than would be typical for a standard design lens of the same focal length. This large image ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aperture
In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image of the aperture and focal length of an optical system determine the cone angle of a bundle of rays that comes to a focus in the image plane. An optical system typically has many structures that limit ray bundles (ray bundles are also known as ''pencils'' of light). These structures may be the edge of a lens or mirror, or a ring or other fixture that holds an optical element in place or may be a special element such as a diaphragm placed in the optical path to limit the light admitted by the system. In general, these structures are called stops, and the aperture stop is the stop that primarily determines the cone of rays that an optical system accepts (see entrance pupil). As a result, it also determines the ray cone angle and brightne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Length
The focal length of an Optics, optical system is a measure of how strongly the system converges or diverges light; it is the Multiplicative inverse, inverse of the system's optical power. A positive focal length indicates that a system Convergence (optics), converges light, while a negative focal length indicates that the system Divergence (optics), diverges light. A system with a shorter focal length bends the Ray (optics), rays more sharply, bringing them to a focus in a shorter distance or diverging them more quickly. For the special case of a thin lens in air, a positive focal length is the distance over which initially Collimated beam, collimated (parallel) rays are brought to a Focus (optics), focus, or alternatively a negative focal length indicates how far in front of the lens a point source must be located to form a collimated beam. For more general optical systems, the focal length has no intuitive meaning; it is simply the inverse of the system's optical power. In mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IDEX Corporation
IDEX Corporation is a global industrial company based in Northbrook, Illinois. IDEX develops, designs, and manufactures fluidics systems, optics systems, fire and rescue equipment, and other specialty engineered products. As of February 2025, IDEX operated in approximately 20 countries and had approximately employed 9,000 employees. The company is publicly traded and a component of the S&P 500 index. History IDEX was formed in 1988, when Kohlberg Kravis Roberts purchased several divisions of Houdaille Industries, which had recently been sold by KKR to Tube Instruments. Its first chairman and CEO was Donald N. Boyce. The company raised $3.3 million with its initial public offering in June 1989. In May 1994, IDEX reached an agreement to acquire Hale Products, Inc., of Conshohocken, Pa., for $90 million. Hale sells fire-trucks, portable pumps, ventilation systems, and is part of IDEX's fire and safety division, which includes the Hurst " Jaws of Life". By 1996, IDEX had acquired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Filter
In photography and cinematography, a filter is a camera accessory consisting of an optical filter that can be inserted into the optical path. The filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens. Filters modify the images recorded. Sometimes they are used to make only subtle changes to images; other times the image would simply not be possible without them. In monochrome photography, coloured filters affect the relative brightness of different colours; red lipstick may be rendered as anything from almost white to almost black with different filters. Others change the colour balance of images, so that photographs under incandescent lighting show colours as they are perceived, rather than with a reddish tinge. There are filters that distort the image in a desired way, diffusing an otherwise sharp image, add ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schneider Kreuznach
Joseph Schneider Optische Werke GmbH (commonly referred to as Schneider) is a manufacturer of industrial and photographic optics. The company was founded on 18 January 1913 by Joseph Schneider as Optische Anstalt Jos. Schneider & Co. at Bad Kreuznach in Germany. The company changed its name to Jos. Schneider & Co., Optische Werke, Kreuznach in 1922, and to the current Jos. Schneider Optische Werke GmbH in 1998. In 2001, Schneider received an Academy Awards, Oscar for Technical Achievement for their Super-Cinelux motion picture lenses. It is best known as manufacturers of large format lenses for view cameras, enlarger lenses, and photographic loupes. It also makes a limited amount of 135 film, small- and Medium format (film), medium-format lenses, and has at various times manufactured eyeglasses and camera rangefinders, as well as being an OEM lens maker for Kodak and Samsung Electronics, Samsung digital cameras. It has supplied the lenses for various LG devices and the BlackBer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camera Bag
Camera bags are a 20th-century development for the convenient carrying and quick access to high-end camera equipment. They replaced fitted leather cases that were supplied with the earliest cameras. In the 1970s, war and documentary photographers used fishing bags made by English companies Brady and Billingham. Billingham noticed their waterproof soft bags were popular with photographers and modified the fishing bag with padding to protect camera gear. In 1975, photojournalist Jim Domke wanted a bag to carry all his camera gear and worked with a tent manufacturer to prototype a canvas camera bag. Feedback from photographers at the 1976 Republican National Convention The 1976 Republican National Convention was a United States political convention of the Republican Party that met from August 16 to August 19, 1976, to select the party's nominees for president and vice president. Held in Kemper Arena in Kansa ... changed the design to arrange the gear vertically, accessed from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billingham Bags
Billingham Bags (M Billingham & Co Ltd) is a British brand of professional bags and vests for carrying cameras, lenses, laptops and photography accessories. The company's headquarters are in Cradley Heath, England. History Billingham Bags (M Billingham & Co Ltd) was founded in 1973 by Martin Billingham, and is still owned and run by the Billingham family. Originally a manufacturer of fishing bags, in 1978 Billingham discovered that a large number of their bags were being sold to a photographer in New York City. Within a year production had switched almost entirely to specialist camera bags. Billingham Bags have worldwide distribution and are still hand made in Cradley Heath, England. Billingham bags are notable for their process of bonding the fabric of the bag to butyl rubber for water resistance. Billingham have had partnerships with well known camera manufacturers Leica and Hasselblad, making custom camera bags for both companies. They have also had a number of collaborations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allstate Savings And Loan
Sears, Roebuck and Co., commonly known as Sears ( ), is an American chain of department stores and online retailer founded in 1892 by Richard Warren Sears and Alvah Curtis Roebuck and reincorporated in 1906 by Richard Sears and Julius Rosenwald, with what began as a mail-order catalog company migrating to opening retail locations in 1925, the first in Chicago. Through the 1980s, Sears was the largest retailer in the United States. In 2005, the company was bought by the management of the American big box discount chain Kmart, which upon completion of the merger, formed Sears Holdings. In 2018, it was the 31st-largest. After several years of declining sales, Sears' parent company filed for Chapter 11 bankruptcy on October 15, 2018. It announced on January 16, 2019, that it had won its bankruptcy auction, and that a reduced number of 425 stores would remain open, including 223 Sears stores. Sears was based in the Sears Tower in Chicago from 1973 until moving out to Hoffman Est ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
