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The use of remote heads on camera cranes allowed the advancement of longer, smaller and telescoping camera cranes, which would not have been possible with a camera operator on board [2] Remote heads are critical in motion-control camera systems that are used for match moving, repeatable moves, and integration with movie computer-generated ...
An Arri 35mm film camera with a follow focus mechanism mounted to a zoom lens. Pulling focus using a follow focus device. A follow focus is a focus control mechanism used in filmmaking with film cameras and in television production with professional video cameras. It helps the camera operator be more efficient and precise.
"Pulling focus" refers to the act of changing the camera lens's focus distance to a moving subject's distance from the focal plane, or the changing distance between a stationary object and a moving camera. For example, if an actor moves from 8 metres (26 ft) to 3 metres (9.8 ft) away from the focal plane, the focus puller changes the lens's ...
A Focus World film February 10, 2012: Return: A Focus World film; co-distributed by Dada Films March 2, 2012: Being Flynn: co-production with Depth of Field, Corduroy Films and Tribeca Productions: April 27, 2012: The Broken Tower: A Focus World film June 22, 2012: Seeking a Friend for the End of the World
The hyperfocal distance is, therefore, the most desirable distance on which to pre-set the focus of a fixed-focus camera. It is worth noting, too, that if a camera is focused on s = ∞, the closest acceptable object is at L 2 = sh/(h + s) = h/(h/s + 1) = h (by equation 21). This is a second important meaning of the hyperfocal distance.
Focusing screen on Praktica Super TL1000 Location of focusing screen (6) in an SLR camera. A focusing screen is a flat translucent material, either a ground glass or Fresnel lens, found in a system camera that allows the user of the camera to preview the framed image in a viewfinder.
The focus itself may be adjusted in a variety of ways. Larger view cameras and the like slide the lens closer or further from the film plane on rails; on smaller cameras, a focus ring on the lens is often rotated to move the lens elements by means of a helical screw. Other systems include levers on the lens or on the camera body.
Portal 2 is a 2011 puzzle-platform game developed by Valve for Windows, macOS, Linux, PlayStation 3, and Xbox 360. The digital PC versions are distributed online by Valve's Steam service, while all retail editions are distributed by Electronic Arts .