There are multiple ways to do 3D in movie theaters. My favorite is RealD because of the image quality and the potential of getting normal sunglasses that work in a theater. I saw Avatar in both RealD and Dolby 3D and could not tell a difference…both looked great.
Here’s a table to help keep it straight:
|Company||Technology||# of Theaters||Cost of Glasses||Can tilt head||Notes|
|RealD||Circular Polarization (passive)||5,000||$0.65||Yes|| |
|Dolby 3D||Color Filter (passive)||2,200||$28||Yes|| |
|XpanD||LCD Shutter (active)||2,000||$50||Yes|| |
IMAX 3D uses either linear polarization (which means you *cannot* tilt your head), or LCD shutter glasses, depending on theater.
My biggest issues are…
- Letting you tilt your head during a movie
- Headaches from LCD shutter glasses
For now, I’m avoiding XpandD and IMAX 3D for 3D movies.
Much of this info is from this article.