Enjoy nature from afar with these Nikon ACULON A211 binoculars, which provide 8x magnification and aspherical Eco-Glass multicoated lenses with BaK4 Porro prisms for bright, clear images in most lighting conditions. Eco-Glass lenses Offer clear images without using arsenic or lead. Rubber armor Ensures durability and a sure grip. 8x magnification with 42mm-diameter, aspherical lenses Bring your subject clearly into view. 420' field of view at 1000 yards Provides a wide viewing area. Center focusing knob Allows smooth adjustments. Aspherical, multicoated optics Deliver optimal brightness. BaK4 Porro prisms Produce excellent image clarity.