This optical lens is manufactured professionally to guarantee reliable performance. Lenses with anti-reflection coating are also available. It serves to eliminate distracting reflections off the lens surfaces and is particularly helpful for computer users and for night driving.

• Index (Ne): 1.553.
• Abbe value: 36.
• Specific gravity: 1.28.
• Diameter: 65, 70, 72mm.
• SP power range: 0.00-+8.00/-0.25--6.00; -10.25-15.00/-0.25--4.00; 0.00--10.00/-0.25--4.00.
• Coating: HC/HMC+EMI/hydro-phobic.