IMAX

IMAX is a cinematographic technique which produces an image approximately ten times larger than that from standard 35 mm film. The name is probably "i" as a representation of "eye" or "image," plus "max" as short for "maximum." It is a trademark for a giant-screen, large-format movie and motion-simulation entertainment complex, with a motion-picture screen that is eight stories high and compatible with 3-D technology. The first IMAX film was demonstrated in 1970 and first system set up in 1971 (in Toronto) on which was shown North of Superior. Film types are usually described by their gauge, or approximate width. The 65-mm format is used chiefly for special effects and for special systems such as IMAX and Showscan. It was formerly used for original photography in conjunction with 70-mm release prints; now 70-mm theatrical films are generally shot in 35-mm and blown up in printing. With some exceptions the 35-mm format is for theatrical use, 16-mm for institutional application s, and 8-mm for home movies.