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The largest possible angle of incidence which still results in a refracted ray is called the critical angle; in this case the refracted ray travels along the boundary between the two media. Refraction of light at the interface between two media. For example, consider a ray of light moving from water to air with an angle of incidence of 50°.
The 90-degree complement to the angle of incidence is called the grazing angle or glancing angle. Incidence at small grazing angles is called "grazing incidence." [citation needed] Grazing incidence diffraction is used in X-ray spectroscopy and atom optics, where significant reflection can be achieved only at small values of the grazing angle.
The Zone System is a photographic technique for determining optimal film exposure and development, formulated by Ansel Adams and Fred Archer. [1] Adams described the Zone System as "[...] not an invention of mine; it is a codification of the principles of sensitometry, worked out by Fred Archer and myself at the Art Center School in Los Angeles, around 1939–40."
Film stock made of nitrate, acetate, or polyester bases is the traditional medium for capturing the numerous frames of a motion picture, widely used until the emergence of digital film in the late 20th century. film theory film transition film treatment filmmaking. Sometimes used interchangeably with film production.
The imaginary line allows viewers to orient themselves with the position and direction of action in a scene. If a shot following an earlier shot in a sequence is located on the opposite side of the 180-degree line, then it is called a "reverse cut".
In film, an insert is a shot of part of a scene as filmed from a different angle and/or focal length from the master shot. Inserts cover action already covered in the master shot, but emphasize a different aspect of that action due to the different framing. An insert differs from a cutaway as cutaways cover action not covered in the master shot.
The 30-degree rule is a basic film editing guideline that states the camera should move at least 30 degrees relative to the subject between successive shots of the same subject. If the camera moves less than 30 degrees, the transition between shots can look like a jump cut —which could jar the audience and take them out of the story.
The term "bullet time" was first used with reference to the 1999 film The Matrix, [2] and later in reference to the slow motion effects in the 2001 video game Max Payne. [ 3 ] [ 4 ] In the years since the introduction of the term via the Matrix films it has become a commonly applied expression in popular culture.