1.67 is a Hi Index plastic lens, not polycarbonate. We offer the 1.74 Hi index plastic as well, which is thinner than the 1.67. We do not have access to the GLASS lenses with a 1.8 or 1.9 index of refraction. We normally try to stay away from glass due to weight and safety factors. We can offer the 1.60 Hi index Glass lens.
1.67 is not the thinest polycarbonate lens. 1.74 is The thin lens that is the thinest is 1.8 or 1.9 made of glass from Germany. Do you have any of these thinner models?
1.67 is a Hi Index plastic lens, not polycarbonate. We offer the 1.74 Hi index plastic as well, which is thinner than the 1.67. We do not have access to the GLASS lenses with a 1.8 or 1.9 index of refraction. We normally try to stay away from glass due to weight and safety factors. We can offer the 1.60 Hi index Glass lens.
framesdirect 4 days ago
1.67 is not the thinest polycarbonate lens. 1.74 is The thin lens that is the thinest is 1.8 or 1.9 made of glass from Germany. Do you have any of these thinner models?
MsMommaRose 4 days ago