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Tripod (photography)
In photography, a tripod is a portable device used to support, stabilize and elevate a camera, a flash unit, or other videographic or observational/measuring equipment. All photographic tripods have three legs and a mounting head to couple with a camera. The mounting head usually includes a thumbscrew that mates to a female-threaded receptacle on the camera, as well as a mechanism to be able to rotate and tilt the camera when it is mounted on the tripod. Tripod legs are usually made to telescope, in order to save space when not in use. Tripods are usually made from aluminum, carbon fiber, steel, wood or plastic. Usage Tripods are used for both still and motion photography to prevent camera movement. They are necessary when slow-speed exposures are being made, or when lenses of extreme focal length are used, as any camera movement while the shutter is open will produce a blurred image. In the same vein, they reduce camera shake, and thus are instrumental in achieving max ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tripod 0840
A tripod is a portable three-legged frame or stand, used as a platform for supporting the weight and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads as well as horizontal shear forces, and better leverage for resisting tipping over due to lateral forces can be achieved by spreading the legs away from the vertical centre. Variations with one, two, and four legs are termed '' monopod'', ''bipod'', and ''quadripod'' (similar to a table). Etymology First attested in English in the early 17th century, the word ''tripod'' comes via Latin ''tripodis'' ( GEN of ''tripus''), which is the romanization of Greek (''tripous''), "three-footed" (GEN , ''tripodos''), ultimately from (''tri-''), "three times" (from , ''tria'', "three") + (''pous''), "foot". The earliest attested form of the word is the Mycenaean Greek , ''ti-ri-po'', written in Linear B syllabic script. Cultural use Many cu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unified Thread Standard
The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. It is the main standard for bolts, nuts, and a wide variety of other threaded fasteners used in these countries. It has the same 60° profile as the ISO metric screw thread, but the characteristic dimensions of each UTS thread (outer diameter and pitch) were chosen as an inch fraction rather than a millimeter value. The UTS is currently controlled by ASME/ANSI in the United States. Origins : ''See the "History of standardization" section of the screw thread article.'' Basic profile Each thread in the series is characterized by its major diameter ''D''maj and its pitch, ''P''. UTS threads consist of a symmetric V-shaped thread. In the plane of the thread axis, the flanks of the V have an angle of 60° to each other. The outermost and the innermost of the height ''H'' of the V-sha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panning (camera)
In cinematography and photography panning means swivelling a still or video camera horizontally from a fixed position. This motion is similar to the motion of a person when they turn their head on their neck from left to right. In the resulting image, the view seems to "pass by" the spectator as new material appears on one side of the screen and exits from the other, although perspective lines reveal that the entire image is seen from a fixed point of view. The term ''panning'' is derived from ''panorama'', suggesting an expansive view that exceeds the gaze, forcing the viewer to turn their head in order to take everything in. Panning, in other words, is a device for gradually revealing and incorporating off-screen space into the image. Panning should never be confused with tracking or "travelling," in which the camera is not just swivelled but is physically displaced left or right, generally by being rolled parallel to its subject. In video technology, panning refers to the h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tilt (camera)
Tilting is a cinematographic technique in which the camera stays in a fixed position but rotates up/down in a vertical plane. Tilting the camera results in a motion similar to someone raising or lowering their head to look up or down. It is distinguished from panning in which the camera is horizontally pivoted left or right. Pan and tilt can be used simultaneously. In some situations the lens itself may be tilted with respect to the fixed camera body in order to generate greater depth of focus. The camera's tilt will change the position of the horizon, changing the amount of sky or ground that is seen. Tilt downward is usually required for a high-angle shot and bird's-eye view while a tilt upward is for a low-angle shot and worm's-eye view. The vertical offset between subjects can reflect differences in power, with superior being above. Tilting can be used as a reveal as in tilting up from seeing the murder victim, to the weapon, to the identity of the killer. It c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slik Pro 700DX
Slik were a Scottish pop group of the mid-1970s, most notable for their UK number 1 hit " Forever and Ever" in 1976. Initially glam rock, the band later changed their style to soft rock/ bubblegum. It was the first band with whom singer and guitarist Midge Ure began to experience musical success, before joining new wave band Ultravox. History Slik were formed as the Glasgow based band 'Salvation' in June 1970, comprising brothers Kevin McGinlay (vocals) and Jim McGinlay (bass), Nod Kerr (drums), Mario Tortolano (keyboards), and Ian Kenny (guitar). Brian Deniston replaced Ian Kenny in December 1970 and Nod Kerr departed in May 1971, followed by Tortolano and they were replaced by Matt Cairns on drums and Robin Birrel on keyboards. Deniston left shortly after this change and they were forced to continue as a four-piece outfit for almost a year, with Kevin McGinlay taking up guitar duties. Birrel and Cairns then left in March 1972 and they recruited Kenny Hyslop on drums, Bill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Joint
In an automobile, ball joints are spherical bearings that connect the control arms to the steering knuckles, and are used on virtually every automobile made. They bionically resemble the ball-and-socket joints found in most tetrapod animals. A ball joint consists of a bearing stud and socket enclosed in a casing; all these parts are made of steel. The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. A protective encasing prevents dirt from getting into the joint assembly. Usually, this is a rubber-like boot that allows movement and expansion of lubricant. Motion-control ball joints tend to be retained with an internal spring, which helps to prevent vibration problems in the linkage. The "offset" ball joint provides means of movement in systems where thermal expansion and contraction, shock, seismic motion, and torsional motions, and forces are present. Theory A ball joint is used for allowing free rotation in two planes at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manfrotto 488 RC4
Manfrotto is an Italian brand of camera and lighting supports, including tripods, monopods, and other accessories, that is manufactured by Lino Manfrotto + Co. Spa, a company headquartered in Cassola, Italy. The brand is wholly-owned by Videndum plc. History Lino Manfrotto, an Italian photojournalist, began designing and selling light stands, booms, and telescopic rods under the name "Manfrotto" in the late 1960s. In 1972 Lino Manfrotto met Gilberto Battocchio, a technician working for a Bassano mechanical firm. With the collaboration, the company introduced its first tripod in 1974. By 1986 Manfrotto already had six manufacturing plants in Bassano, and in the following two years they would build five more plants in Villapaiera, the industrial zone of Feltre. Vinten Group purchased Manfrotto in 1989, followed by the French company Gitzo in 1992 and the American company Bogen Photo Corp. in 1993. Vinten Group chose to maintain the brands as separate lines in its portfolio. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-clamp
A C-clamp or G-clamp or G-cramp is a type of clamp device typically used to hold a wood or metal workpiece, and often used in, but are not limited to, carpentry and welding. Often believed that these clamps are called "C" clamps because of their C-shaped frame, or also often called C-clamps or G-clampshttp://www.technologystudent.com/equip1/cramp1.htm, Information on G-clamps. because including the screw part, they are shaped like an uppercase letter G. However, in fact, they were originally called a carriage maker's clamp, or Carriage Clamp. Description C-clamps or G-clamps are typically made of steel or cast iron, though smaller clamps may be made of pot metal. At the top of the "C," is usually a small flat edge. At the bottom is a threaded hole through which a large threaded screw protrudes. One end of this screw contains a flat edge of similar size to the one at the top of the frame, and the other end usually a small metal bar, perpendicular to the screw itself, which is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball Head
A ball head is a metal or plastic apparatus placed on top of a tripod A tripod is a portable three-legged frame or stand, used as a platform for supporting the weight and maintaining the stability of some other object. The three-legged (triangular stance) design provides good stability against gravitational loads ... that increases stability and provides faster, more accurate rotation of the camera for the photographer. They are lighter than traditional three-way pan-tilt tripod heads. With fewer parts and a much simpler mechanism, ball heads are usually preferred by more advanced photographers. They are usually quite expensive most professional-quality heads are more than US$200, although some heads are available for less than $100. See also * Tripod head References {{Photo-stub Photography equipment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landscape
A landscape is the visible features of an area of land, its landforms, and how they integrate with natural or man-made features, often considered in terms of their aesthetic appeal.''New Oxford American Dictionary''. A landscape includes the physical elements of geophysically defined landforms such as (ice-capped) mountains, hills, water bodies such as rivers, lakes, ponds and the sea, living elements of land cover including indigenous vegetation, human elements including different forms of land use, buildings, and structures, and transitory elements such as lighting and weather conditions. Combining both their physical origins and the cultural overlay of human presence, often created over millennia, landscapes reflect a living synthesis of people and place that is vital to local and national identity. The character of a landscape helps define the self-image of the people who inhabit it and a sense of place that differentiates one region from other regions. It is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Page Orientation
Page orientation is the way in which a rectangular page (paper), page is oriented for normal viewing. The two most common types of orientation are ''portrait'' and ''landscape''. The term "portrait orientation" comes from visual art terminology and describes the dimensions used to capture a person's face and upper body in a picture; in such images, the height of the display area is greater than the width. The term "landscape orientation" also reflects visual art terminology, where pictures with more width than height are needed to fully capture the horizon within an artist's view. Besides describing the way documents can be viewed and edited, the concepts of "portrait" and "landscape" orientation can also be used to describe video and photography display options (where the concept of "aspect ratio (image), aspect ratio" replaces that of "page orientation"). Many types of visual media use landscape mode, especially the 4:3 aspect ratio used for classic TV formatting, which is 4 u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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