1.61 aspherical lens hmc + emi, green coating professional quality, 75mm diameter reasonable price, fast delivery time 1.61 aspherical resin lens, optical lens, cr39 lens: 1. high quality, FDA, CE and Drop-ball test.2. excellent material, aspherical lenses. 3. high Index 1.61, Diameter: 75mm; HMC + EMI, green coating4. reasonable price