Friday, November 2, 2012

IMAX 3D

IMAX 3D Video Clips. Duration : 4.07 Mins.


This segment shows how IMAX 3D experience is created. Two independent key components featured in this video: IMAX = huge projection screen, large film format, powerful multi-channel sound system. 3D = stereoscopic effects. Note that most IMAX theaters popping up in recent years use IMAX digital projectors. No film is involved, hence portions of this video do not apply to those new theaters. Digital IMAX movies are transported by multi-giga byte computer hard disks. Many new IMAX screens are about 40 feet tall which are only half the height of the 80 feet tall screen depicted in this video. Traditional IMAX theatre is usually a 8 story tall building you can spot from blocks away. For example, in San Francisco Bay Area, the only tall IMAX screens are in the SONY Metreon building in San Francisco and Hacienda crossing 21 theater in Dublin, CA. The few dozens new IMAX theaters are all small screen substitutes. IMAX 3D uses linear polarization. Tilt your head and the 3D effect is screwed up. Newer Real-D 3D solved that problem. Compare them by watching www.time.com The other advantage of the Real-D system is that 3D contact lens is compatible. See www.televisions.com IMAX 3D cannot do that with linear polarization. There is a very informative article from CNET Asia which compare IMAX Digital 3D vs. RealD 3D at asia.cnet.com Read it if you want to know more. Note that this video you are watching is about the old film based IMAX analog 3D projection, not IMAX digital 3D. In the ...

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