Difference Between IMAX 3D and Digital 3D
IMAX 3D vs. Digital 3D
With the on-going deployment of 3D movie theaters all over the world, and the increasing number of titles being released for 3D theaters, most people still do not know that there are two major technologies for 3D. There is the very popular IM AX 3D and Digital 3D, that includes RealD and Dolby 3D, among others. The difference between the two types that is easiest to spot, even for the uninformed, is the discrepancy in screen size. IMAX 3D screens are huge, and much bigger compared to the screens used for Digital 3D.
When it comes down to the basics, IMAX movies are on an analog film, while Digital 3D movies are already in a digital format. The equipment is quite different for both, and you can easily compare them to the difference between a film camera and a digital camera. Digital 3D makes it easier and cheaper to distribute movies, as the digital information can be quickly transmitted or transported in more traditional media; unlike film, which can only be transported via courier, and is relatively bulkier.
There is also a difference between the two when it comes to polarization. IMAX uses linear polarization, while Digital 3D uses circular polarization. With linear polarization, you need to keep your head aligned vertically, as tilting too much can cause distortions in the 3D image. This is not a problem with circular polarization, which is why it is preferred by a lot more people.
As IMAX 3D has been around for much longer compared to Digital 3D, it is the more popular between the two. Most users who go to a 3D movie theater are more likely to be walking into an IMAX movie theater, rather than a Digital 3D movie theater, as there are a greater number of IMAX movie theaters in more countries around the world.
Although IMAX has come up with a digital version as an answer to the number of digital formats that are emerging, the use of IMAX 3D still commonly refers to the analog IMAX movie theaters.
1. IMAX 3D movie screens are much bigger compared to Digital 3D movie screens.
2. IMAX 3D movies still use analog film, while Digital 3D movies are in digital format.
3. IMAX 3D uses linear polarization, while Digital 3D uses circular polarization.
4. IMAX 3D is more popular, and is available in a greater number of places compared to Digital 3D.
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