Version information of IMAX

In the autumn of 2002, IMAX and Universal Studios jointly released the IMAX version of Apollo13 (1995), which used IMAX's exclusive DMR reproduction technology to convert traditional movies into IMAX format for the first time. Other films that have been released, such as Star Wars, have also been processed by DMR technology and transferred to IMAX. Due to technical limitations, the length of films processed by DMR in the early days did not exceed 2 hours. In 2003, "Matrix 2: Reloading" broke through this limitation and became an important milestone in the development of IMAX. At the end of 2003, the sequel "The Matrix Revolution" became the first film to be released simultaneously in IMAX and traditional cinemas.

Most viewers have a positive attitude towards the IMAX movie magnified by DMR technology, which brings more visual and auditory enjoyment than the traditional 35mm movie. A typical example is an audience who watched Apollo 13: "The huge screen, the sound effect of explosion and the thrilling soundtrack of james horner can only be felt in IMAX".

Both DMR and digital IMAX projectors are considered as a commercial compromise of IMAX company, not a complete technological innovation. DMR amplification technology can't be compared with IMAX format which directly makes the film into 70mm 15 holes. Most DMR movies are in the widescreen format of 16: 9 or 2.35: 1, so the whole IMAX screen can't be filled when showing, and only about half of it can be filled at most. At the beginning of IMAX movie, IMAX logo short film is full screen, while the actual film is widescreen. Some movies, such as Transformed king kong 2, are full screen, but when some movie clips are played, the picture will be expanded to full screen. The resolution of DMR cannot be compared with that of 70mm film. In particular, many movies use digital cameras and post-stunts, so even DMR can only achieve 2K resolution. For example, the movie version of Avatar has only the original resolution of 2K. People who are obsessed with the big screen will think that the decline of film technology and the replacement of the original processing method by new, simpler and lower-cost processing methods are roughly synchronous, and DMR is only an important symbol.

IMAX initially only labeled the real 70mm film as "IMAX Experience". Now, it may use this slogan for films amplified by DMR technology. Stereo version of IMAX technology. In order to create a three-dimensional depth of field, IMAX 3D uses dual cameras and dual projectors for shooting and projection.

At present, IMAX 3D projection adopts polarized light projection, and stereoscopic images are analyzed by wearing polarized glasses. Most IMAX 3D cinemas use linearly polarized lenses. Other companies use circularly polarized glasses, which are less affected by the rotation angle of the glasses, and the effect is basically not affected when the audience tilts their heads, unlike linear polarized glasses, when the audience tilts their heads, there will be a virtual shadow of a three-dimensional picture.

IMAX uses 15/70 film format, which is 10 times larger than the traditional 35mm film. 15/70 film format and its unique IMAX projection technology are two magic weapons for IMAX cinemas to obtain super image clarity and bright colors. One film corresponds to one eye, and two independent images are provided through polarized filter glasses or infrared synchronization system with electronic glasses. Combined with IMAX giant screen, IMAX3D can produce realistic full-field stereoscopic effect.

IMAX 3D camera

IMAX 3D camera is one of the highest resolution image acquisition cards in the world. It can record the imaging of the left eye and the right eye simultaneously on two 65mm wide films. IMAX 3D camera can shoot IMAX images with wide lens and high resolution.

IMAX3D projector

IMAX 3D projector projects two left and right eye films in 15/70 format onto the dedicated screen of IMAX 3D at the same time. The audience must wear IMAX 3D glasses and project the images of the left and right eyes to the left and right eyes respectively. IMAX cinemas use P3D glasses, which use polarized lenses to separate the imaging of the left and right eyes.