Compact, Lightweight & Redesigned Body. Aspherical Lenses Minimize Distortion And Provide Sharp Images Up To The Periphery. Multi Layer Coated Lenses For Bright Images. Special Rubber Armour For Shock Resistance And Firm, Comfortable Grip. Carbon Fiber In The Body Material Improves Durability. Click Type Dioptre Adjustment Ring Prevents Unintentional Rotation. Larger Focusing Knob For Smooth Operation. Eco Glass Optics Are Free Of Lead And Arsenic.