Building on the success of the original Ultravid HD, Leica's 7x42 Ultravid HD Plus Binocular adds improved technologies and materials to create an optic with bright and clear images across the entire field of view. The HD Plus delivers enhanced contrast and true color fidelity, with virtually zero distortion, even in low-light conditions.Leica upgraded the glass to specially formulated SCHOTT HT glass which increases light transmission especially in the blue-violet light band, improves color fidelity, and enhances low-light performance. Scratch and abrasion-resistant High Durable Coating (HDC), and hydrophobic AquaDura coating on outer lens protect surfaces and causes water and oil to bead off for easier cleaning and clearer vision. The roof prisms feature P40 phase-correction and the proprietary High Lux System (HLS) coatings. These coatings virtually eliminate chromatic aberration for enhanced color rendition and increased contrast. SCHOTT HT Glass Phase-Corrected Roof Prisms HDC and AquaDura Lens Coatings Nitrogen-Filled, Water/Fogproof Closed Bridge Configuration Magnesium Alloy Chassis Protective Rubber Armor Center Focusing Tripod Mountable Twist-Up Click-Stop Eyecups Prism: RoofColor: Black