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Ultra Panavision saw much less use than its sibling, the more popular Super Panavision 70, and was only used on ten films from 1957 to 1966. However, nearly fifty years later, Robert Richardson famously resurrected Ultra Panavision 70 after the lens test he came to do at the Panavision headquarters for the upcoming project with Quentin ...
Porro prisms are most often used in pairs, forming a double Porro prism. A second prism rotated 90° with respect to the first, is placed such that light will traverse both prisms. The net effect of the prism system is a beam parallel to but displaced from its original direction, with the image rotated 180°. A double Porro system provides four ...
A prism sight or prismatic sight, sometimes also called prism scope or prismatic scope, is a type of telescopic sight which uses a reflective prism for its image-erecting system, instead of the series of relay lenses found in traditional telescopic sights. The use of prisms makes it possible to construct a shorter and lighter sight, or with an ...
Although the Spotmatic's stop-down (manual diaphragm lenses) system was less convenient than the RE Super's open aperture (auto-diaphragm lenses) system, the Spotmatic's two CdS cells on either side of the eyepiece reading off the focusing screen was less expensive and complex than the RE Super's system (see above), and thereby more popular.
Extreme zoom lenses available on compacts (such as 30× to 120× models) are more expensive or simply not available on large sensor cameras due to physical size, cost, and practicality considerations.
In March 1973, electronics manufacturer RCA Corporation touted its “new low-price color TV” in the New York Times.The cost was $379.95 for a 15-inch model — the equivalent of a $2,694.32 ...
Traditional TV viewing is falling off a cliff. According to the latest data from Nielsen, linear TV viewership fell below 50% in July for the first time.Broadcast and cable each hit a new low of ...
Prism (optics) An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base and rectangular sides.
A Fresnel lens (/ ˈ f r eɪ n ɛ l,-n əl / FRAY-nel, -nəl; / ˈ f r ɛ n ɛ l,-əl / FREN-el, -əl; or / f r eɪ ˈ n ɛ l / fray-NEL) is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections.
Walt Disney has cut its investment in programming for traditional television networks pretty dramatically as part of its strategy to maximize audiences and profit in the streaming TV era, Chief ...