This is a polarized filter made from 3D movie glasses and a camera lens cap. Polarized filters are useful for reducing glare, unwanted reflection, and some other neat tricks. Update: These are RealD glasses, which uses circular polarizers instead of linear. This is advanced 3D film viewing technology used to create your own polarized filters for cameras.
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Creator's Site: www.youtube.com/user/ellis3d
Curated By: bird crick