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Rotary Disc Shutter
A rotary disc shutter is a type of shutter. It is notably used in motion picture cameras. Rotary shutters are semicircular discs that spin in front of the film gate, alternately allowing light from the lens to strike the film, or blocking it. Details Rotary shutters are semicircular discs that spin in front of the film gate, alternately allowing light from the lens to strike the film, or blocking it. When blocking the light, the exposed portion of the film is advanced, and another, pristine frame is moved into position. The spinning disc then exposes the new frame of film. The nature of light-sensitive film requires a shutter to block the light and prevent "smearing" of the image as the film is advanced through the camera. Digital sensors do not require a rotary shutter, although some high-end digital cinema cameras do have them. Some rotary shutters utilize mirrors (or mirrored surfaces) so that when the shutter is in its "closed" position, light from the lens is redirected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moviecam Schematic Animation
Moviecam is a motion picture equipment company specializing in movie camera systems for 35 mm film. History Originally started in Vienna, Austria as an in-house project of Fritz Gabriel Bauer and Walter Kindler's Moviegroup film production company in the late 1960s, the amount of research and development needed to create a new and modern motion picture camera system from scratch led to the formal creation of Moviecam as an independent corporate entity in 1976. Although only three camera models (SuperAmerica, Compact, and SL) were produced in significant quantities for international usage, the high quality camera design, simplicity of usage compared to the contemporary models of Arri and Panavision, and integration of modern and pioneering camera features led to widespread usage in the film industry. Arri subsequently bought the company in the 1990s. At Arri, Bauer developed, together with Walter Trauninger and their camera development team, the Arricam System, which combined ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Of Field
The depth of field (DOF) is the distance between the nearest and the furthest objects that are in acceptably sharp focus in an image captured with a camera. Factors affecting depth of field For cameras that can only focus on one object distance at a time, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus. "Acceptably sharp focus" is defined using a property called the "circle of confusion". The depth of field can be determined by focal length, distance to subject, the acceptable circle of confusion size, and aperture. Limitations of depth of field can sometimes be overcome with various techniques and equipment. The approximate depth of field can be given by: : \text \approx \frac for a given circle of confusion (c), focal length (f), f-number (N), and distance to subject (u). As distance or the size of the acceptable circle of confusion increases, the depth of field increases; however, increasing the size of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shutter Speed
In photography, shutter speed or exposure time is the length of time that the film or digital sensor inside the camera is exposed to light (that is, when the camera's shutter (photography), shutter is open) when taking a photograph. The amount of light that reaches the Photographic film, film or image sensor is proportional to the exposure time. of a second will let half as much light in as . Introduction The camera's shutter speed, the lens's aperture or f-stop, and the scene's luminance together determine the amount of light that reaches the film or sensor (the exposure (photography), exposure). Exposure value (EV) is a quantity that accounts for the shutter speed and the f-number. Once the sensitivity to light of the recording surface (either film or sensor) is set in numbers expressed in "Film speed#ISO, ISOs" (ex: 200 ISO, 400 ISO), the light emitted by the scene photographed can be controlled through aperture and shutter-speed to match the film or sensor sensitivity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympus Pen F
The Olympus Pen F, Pen FT and Pen FV are very similar half-frame 35 mm single-lens reflex (SLR) cameras with interchangeable lenses produced by Olympus of Japan between 1963-1966 (Pen F), 1966-1972 (Pen FT) and 1967-1970 (Pen FV). The original Pen F has a double-stroke film advance and a distinctive logo rendered in a gothic font. The later Pen FT added a single-stroke film advance, and an uncoupled, integrated light meter, which uses a system of exposure numbers rather than f-stops. The exposure numbers were added to the aperture rings of later Pen F lenses; the rings could be pulled out and rotated to show conventional f-stops instead. A side-effect of the FT's light meter was a dimmer viewfinder. The Pen FV was essentially a Pen FT with the light meter deleted and the F's brighter viewfinder reinstated. ''Half frame'' means that the camera uses an 18×24 mm vertical (portrait) format, producing twice the pictures on a roll of 135 film as the regular 36×24 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Univex Mercury
The 1938 Univex Mercury was an unusual Half-frame camera, half frame 135 film, 35 mm camera from The Universal Camera Corporation. It was the first camera with any kind of hot shoe connector, and had a distinctive profile due to a large dome protruding from the top of the main body to accommodate its 1/1000 sec rotary disc shutter.S. F. Spira with Eaton S. Lothrop, Jr and Jonathan R. Spira. ''The History of Photography as Seen Through the Spira Collection.'' New York, NY: Aperture, 2001 . pp 154, 159-160. References Cameras {{camera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shutter (photography)
In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses of light to pass outwards, as seen in a movie projector or a signal lamp. A shutter of variable speed is used to control exposure time of the film. The shutter is constructed so that it automatically closes after a certain required time interval. The speed of the shutter is controlled by a ring outside the camera, on which various timings are marked. Camera shutter Camera shutters can be fitted in several positions: * Leaf shutters are usually fitted within a lens assembly (''central shutter''), or more rarely immediately behind (''behind-the-lens shutter'') or, even more rarely, in front of a lens, and shut off the beam of light where it is narrow. *Focal-plane shutters are mounted near the focal plane and move to uncover the fil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Janusz Kamiński
Janusz Zygmunt Kamiński (; born June 27, 1959) is a Polish cinematographer and director of film and television. He has established a partnership with Steven Spielberg, working as a cinematographer on his films since 1993. He won the Academy Award for Best Cinematography for his work on Spielberg's holocaust drama ''Schindler's List'' and World War II epic ''Saving Private Ryan'' (1998). He has also received Academy Award nominations for '' Amistad'' (1997), '' The Diving Bell & the Butterfly'' (2007) ''War Horse'' (2011), ''Lincoln'' (2012), and ''West Side Story'' (2021). He has also received five British Academy Film Award nominations, and six American Society of Cinematographers Award nominations. In addition to his collaborations with Spielberg, he has also worked with Cameron Crowe, James L. Brooks, and Julian Schnabel. Kamiński has also moved into the field of directing, first with the horror film ''Lost Souls'' (2000), and later television series like ''The Event'' (201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saving Private Ryan
''Saving Private Ryan'' is a 1998 American epic war film directed by Steven Spielberg and written by Robert Rodat. Set during the Battle of Normandy in World War II, the film is known for its graphic portrayal of war, especially its depiction of the Omaha Beach assault during the Normandy landings. The film follows United States Army Rangers Captain John H. Miller (Tom Hanks) and his squad ( Tom Sizemore, Edward Burns, Barry Pepper, Giovanni Ribisi, Vin Diesel, Adam Goldberg, and Jeremy Davies) as they search for a paratrooper, Private first class James Francis Ryan (Matt Damon), the last surviving brother of four, the three other brothers having been killed in action. The film was a co-production between DreamWorks Pictures, Paramount Pictures, Amblin Entertainment, and Mutual Film Company. DreamWorks distributed the film in North America while Paramount released the film internationally. Rodat first wrote the script in 1994 after reading about the Niland brothers, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speed Ramping
Slow motion (commonly abbreviated as slo-mo or slow-mo) is an effect in film-making whereby time appears to be slowed down. It was invented by the Austrian priest August Musger in the early 20th century. This can be accomplished through the use of high-speed cameras and then playing the footage produced by such cameras at a normal rate like 30 fps, or in post production through the use of software. Typically this style is achieved when each film frame is captured at a rate much faster than it will be played back. When replayed at normal speed, time appears to be moving more slowly. A term for creating slow motion film is overcranking which refers to hand cranking an early camera at a faster rate than normal (i.e. faster than 24 frames per second). Slow motion can also be achieved by playing normally recorded footage at a slower speed. This technique is more often applied to video subjected to instant replay than to film. A third technique uses computer software post-processing to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
