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cr-39 1.49 resin lens 1)product variety: uc,hc, hmc+emi, uv400+emi, tinctable 2)abbe: 58.0 3)refractive index: 1.49 4)diameter: 60mm/55mm/65mm5)power range: sph 0.00 ~ +17.00/0.00~-10.00 cyl -0.25~ -6.00 6)features: flat, thin, light, high transmittance, stable color and precise design 7)semi-finis...
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