1. GLASS LENS (index 1.523, 1.70, uncoated & A/R, size 65/70 mm)2. CR-39 LENS (index 1.499, 1.56, 1.61, 1.67 uncoated, H/C, H/M/C, size: 65/70/72 mm)3. BIFOCAL LENS (glasses & CR-39. round-top bifocal, flat-top bifocal, blended bifocal and...
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