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IMAX

IMAX is a system using 70 mm film with more than ten times the frame size of a 35 mm film. IMAX theaters use an oversized screen as well as special projectors. The first permanent IMAX theater was at Ontario Place in Toronto, Canada. Until 2016, visitors to the IMAX cinema attached to the National Science and Media Museum in Bradford, West Yorkshire, England, United Kingdom, could observe the IMAX projection booth via a glass rear wall and watch the large format films being loaded and projected. The largest permanent IMAX cinema screen measures 38.80 m × 21.00 m (127.30 ft × 68.90 ft) and was achieved by Traumplast Leonberg (Germany) in Leonberg, Germany, verified on 6 December 2022.

IMAX also refers to a digital cinema format that uses dual 2K resolution projectors and a screen with a 1.90:1 aspect ratio; this system is designed primarily for use in retrofitted multiplexes, using screens significantly smaller than those normally associated with IMAX. In 2015, IMAX introduced an updated "IMAX with Laser" format, using 4K resolution laser projectors.