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normrubin To me, this video shows (1) that the lenses ARE polarized, but (2) that the alignment of the polarization is not right. AFAICS, the lenses should block the most light when they are horizontal, the way they are normally worn. That orientation will block the most glare, e.g., reflected light off a horizontal surface like water. These seem to block the most light when they are maybe 45 degrees away from horizontal. (And my newest Chinese clip-on sunglasses -- maybe not from Bangood) have the same problem.)

VeryKeen 21/09/2014
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