This video explains the difference between polarizing lenses used in conventional 3d (linear) and those used in RealD 3d (circular). Circular polarizing lenses enable you to move your head without changing the 3d effect. This tutorial also demonstrates the need for a silver screen or optimal 3d viewing.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
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