aperture guide

См. также в других словарях:

• Guide number — The guide number for an electronic flash measures its ability to illuminate the subject to be photographed at a specific film or sensor speed and angle of view. A higher guide number indicates a more powerful flash.For example, doubling the guide …   Wikipedia

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• aperture grille — (in Trinitron monitors) series of vertical metal wires located inside a cathode ray tube between the screen and electron guns (serves to guide and filter rays emitted by the electron guns) …   English contemporary dictionary

• Numerical aperture — The numerical aperture with respect to a point P depends on the half angle θ of the maximum cone of light that can enter or exit the lens. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes… …   Wikipedia

• Very-small-aperture terminal — A 2.5 m parabolic dish antenna for bidirectional satellite Internet access A very small aperture terminal (VSAT), is a two way satellite ground station or a stabilized maritime Vsat antenna with a dish antenna that is smaller than 3 meters. The… …   Wikipedia

• sunroof aperture panel — A panel which accommodates the sunroof guide rails and draining channels and fits below the roof panel …   Dictionary of automotive terms

• Shutter speed — [ aperture size to achieve proper exposure.] In photography, shutter speed is the length of time a shutter is open; the total exposure is proportional to this exposure time, or duration of light reaching the film or image… …   Wikipedia

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• motion-picture technology — Introduction       the means for the production and showing of motion pictures. It includes not only the motion picture camera and projector but also such technologies as those involved in recording sound, in editing both picture and sound, in… …   Universalium

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Pentax ME F — The Pentax ME F was an amateur level, interchangeable lens, 35 mm film, single lens reflex (SLR) camera. It was manufactured by Asahi Optical Co., Ltd. (called PENTAX Corporation since 2002) of Japan from November 1981 to 1984. The ME F was a… …   Wikipedia