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Home Binoculars Helios Binoculars Helios Stellar II 10x50 Waterproof Observation Binoculars
High quality waterproof , nitrogen filled observation binoculars, with individual eyepiece (IF) focusing, perfect exit pupil of 5mm for night or low light use, designed for medium-to-long-range terrestrial, marine and astronomical observations. Shockproof design incorporating a robust but lightweight magnesium alloy body construction. Features BaK-4 prisms and a fully broadband multi-coated optical system. The optical system features high-transmission lens and prism coatings allowing 85% light transmission. Eyepiece design features oversized elements, generous 20mm eye-relief and fold-down rubber eyecups for spectacle-wearers. A tripod adaptor bush means these binoculars can easily be mounted on any standard photo type tripod with an L Adaptor (sold separately).
Features integral tripod mounting bush. Finished in stylish dark green and black rubber and supplied in soft storage/carrying case with padded neck strap, eyepiece rainguard and captive objective lens caps. Specification 10x50 Magnification 10x Object Lens Diameter 50mm Field of view 6.5° F.O.V. @ 1000M 114m Exit Pupil Diameter 5mm Eye Relief 20mm Interpupillary Distance 56 to 74mm Light Transmission 85% Weight 1150g Dimensions 185x202x66mm
Very Good Value For Money 5 * for Service, 4.5* bins. Prefer porros for astronomy. These bins perform as well as my 10 x roof prism premiums except for a v mild chromatic aberration, no problem for astronomy. I could see two of Jupiter's moons in the twilight with moon and street lights glaring. Stars appear as pinpoints. (14/05/2020) Trevor Morgan - Orpington
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