MeoStar B1 Plus 10x42 HD - Brown. The MeoStar B1 Plus binocular represents the pinnacle of Meopta's premium European optics. Built on the legendary B1/B1.1 chassis with locking diopter correction, the B1 Plus features improved optical tolerances to provide even sharper images and increased optical performance. The redesigned exterior rubber armor gives the user a more solid grip, contoured to better fit the hand for comfortable use in the field. FEATURES: - Premium European optics - Aluminum alloy body - MeoBright coatings for optimal light gathering - Fluoride HD lens elements in 10x42, 12x50 and 15x56 - Lockable diopter adjustment - Ergonomically designed rubber armor - 30-year warranty, transferable (based on prior registration). - Waterproof. - Aluminum alloy body. - Nitrogen filled. - Magnification: 12 x - Objective lens: 50 mm. - Field of view (m / 1000m // ft / 1000yds): 93 // 279. - Field of view: 5.3 °. - Eye relief: 15 mm. - Shortest focusing distance (m / ft): 3.4 // 11.2. - Exit pupil diameter: 4.2 mm. - Daylight transmission: 88%. - Interpupillary distance: 56/74 mm. - Dioptric correction: -3 / 3 D. - Height (mm / in): 173 // 6.8. - Width (mm / in): 139 // 5.5. - Depth (mm / in): 59 // 2.3. - Weight - without caps & strap (g/oz): 1070 // 37.7 MeoPro HD: Featuring high-quality fluoride HD lenses that enhances color rendering. MeoBright: Proprietary ion-assisted multi-coating applied to all optical surfaces. Developed by Meopta, MeoBrightTM ion-assisted multi-coatings eliminate glare and reflections and provide an industry-leading 99.7% light transmission per lens surface. MeoShieldTM: MeoShieldTM ion-assisted coating protects external lens surfaces and offers increased resistance to scratching or abrasion under extreme conditions. MeoShieldTM meets military specifications for durability and surface hardness.