CELESTRON 71346 OUTLAND X 8X42 BINOCULARS (BLACK)BAK4 Roof Prisms for enhanced color fidelity Multicoated optics provide better contrast and more brightness Ribbed center focus dial for easy focus accessibility Twist-up eyecups for eyeglass/sunglass wearers Body casing has protective rubber coating*42mm roof prism with 8x magnification*Fully multi-coated optics*Bak-4 Prism*Waterproof and fogproof*Protective rubber armoring