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In the picture framing industry, a mat (or matte, or mount in British English) is a thin, flat piece of paper-based material included within a picture frame, which serves as additional decoration and to perform several other, more practical functions, such as separating the art from the glass.
Reproductions of antique gilded picture frame mouldings. The Professional Picture Framers Association / PPFA is an international trade organization serving the art and framing community worldwide since 1971. Members include independent frame shop owners and staff, distributors and manufacturers of picture frame mouldings, supplies and equipment ...
The metal section frame was invented by picture framer Donald P. Herbert (1926–1982) in the late 1960s. The frame was designed to fill a void within the framing industry. The concept followed Herbert's attendance at a museum conference in 1967 in Toronto where he met with Dr. Harold Joachim (1909–1983), at that time the Curator of the ...
The movie projector then uses an aperture mask to soft matte the academy frame to the intended aspect ratio (1.85:1 or 1.66:1). When the 4:3 full-screen video master is created, many filmmakers may prefer to use the full Academy frame ("open matte") instead of creating a pan and scan version from within the 1.85 framing.
For example, for the 4/3 format, a 12 mm lens is a wide-angle lens and will have a retrofocus design. For the 2/3-inch format, a 12 mm lens is "normal" and can have a simple and fast double Gauss layout. For the 1/3-inch format, a 12 mm lens is long and can have a telephoto design.
The design directive for what would become the Marston mat was officially assigned to the Army Corps of Engineers on December 11, 1939. [4] [3] Development of landing mats in the United States began in December 1939 at Langley Field. The responsibility for development was shifted to the Engineer Board at Fort Belvoir in May 1940. [4]
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