Simmons ProSport Porro Prism Binocular, Realtree AP Camo (8x 40-mm) Quality optics with stunning HD clarity 100% quality materials used and tested extensively Beautiful design and durability built to last Multi-coated, high-quality optical glass for bright, sharp, images in full detail BK7 porro prisms Rubber-armored for superior grip and protection 8x magnification and 40mm objective diameter; 15-foot close focus distance; 12.3mm eye relief