Imax

IMAX refers to a system of high-resolution cameras, film formats, projection, and theatres designed to deliver immersive cinema experiences on large screens with precise sound. The term also denotes the network of theatres that present content using the IMAX format. The format is produced by IMAX Corporation, a Canadian company that operates globally.

IMAX was developed in the 1960s by Canadian filmmakers Graeme Ferguson, Roman Kroitor, Robert Kerr, and William C. Shaw. The first permanent IMAX cinema, the Cinesphere, opened at Ontario Place in Toronto in 1971, marking the start of the commercial IMAX era. The system expanded internationally in the 1980s and 1990s, with both film-based and later digital venues.

Originally, IMAX used 15-perforation 70 mm film, captured and projected at high resolution to achieve sharp, bright images. The standard IMAX image aspect ratio for 70 mm film is about 1.43:1. To modernize, IMAX introduced digital projection (IMAX Digital) and the IMAX with Laser system, offering higher brightness and color. The company also uses Digital Remastering (DMR) to optimize standard films for the IMAX format. In addition, IMAX Dome venues use a curved, hemispherical screen to maximize immersion.

IMAX presentations emphasize large screens, specialized sound systems with numerous channels, and precise alignment of projection and acoustics to preserve image quality. Content includes blockbuster feature films, as well as documentaries and science programming. IMAX has become a widely recognized brand in modern cinema for delivering an enhanced sense of scale and immersion.