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The
floating styles are equipped with Polaroid Polarizing
lens, technical
name is S13. The support layers of this material is
CAB (Cellulose Acetate
Butyrate). It is a 7 layer laminate with a high
quality scratch resistant
hardcoating. The whole lens is presspolished and
optically correct, optical
class 1, CE standard.
CAB
has advantages and disadvantages...
+unbreakable
+99% polarizing efficiency
+100% chipping free
+optically class 1, power readings and refraction is
excellent
-fairly scratch resistant 2.5 HD
+lightest weight
+very good thermal stability
-distortion along frame edges possible
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Product
Description
