Zeiss 8x42 T* FL Victory, Water Proof Roof Prism Binocular with 7.7 Degree Angle of View, U.S.A. Highest Light Transmission of any Binocular in its Class, Greater than 90%, with the Lowest Amount of Stray Light. Zeiss Fluorite Glass (FL): Outstanding Edge Definition and Minimal Color Fringing. and now with new LotuTec coating Innovative Advanced Optics System (AOS): Environmentally Friendly Thin Lens Technology for Lighter &amp; Higher Optical Performance. Fully Multi-Coated Lenses with Patented T* Anti-Reflective Coatings. Phase-corrected Abbe-Konig Prisms with P* Coating: Brightest and Sharpest View.