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Home Binoculars Helios Binoculars Helios Lightquest 10x50 HR Observation Binoculars
The optimum size for handheld binoculars especially for astronomy is 10x50, the magnification is great enough for good detail and the exit pupil of 5mm is perfectly suited to adult eyes for utilising all the light cone. The high-end Helios Lightquest-HR observation binoculars combine top features in mechanical and optical design, with outstanding performance to match.A tripod adaptor bush means these binoculars can easily be mounted on any standard photo type tripod with an L Adaptor (sold separately).
They are fully waterproof (IPX7 standard, 1m depth for 30 minutes) and nitrogen filled for clear fog-free operation, with individual eyepiece (IF) focusing and designed for medium-to-long-range terrestrial and astronomical observations. The body material is constructed from magnesium alloy making the binocular extremely lightweight, whilst maintaining a very robust structure. The body is covered in stylish hard textured leatherette.Features high-index BaK-4 prisms and a fully broadband multi-coated optical system and shockproof caged prisms. The high-resolution optical system features high-transmission lens and prism coatings allowing a massive light throughput equal to or exceeding 90%. The lens coatings have an extremely low level of reflectivity, ensuring the maximum amount of precious light is provided at the eyepiece. Images delivered are vibrant, very flat edge-to-edge and virtually distortion free. The advanced innovative eyepiece design (8 elements in 5 groups) features oversized eye lens elements for comfortable viewing and provides a highly corrected image. Fold-down rubber eyecups are provided for spectacle-wearers.Included in the packageObjective lens caps, eyepiece rainguard, neoprene neck strap and heavy-duty tripod adaptor, in durable padded fabric carrying case. Specification 10x50 Magnification 10x Object Lens Diameter 50mm Actual Field of View 6.5 degrees Field of View at 1000m 114m Exit Pupil Diameter 5mm Nearest Focus Distance 10m Eye Relief 20mm IP Distance Range 56mm-74mm Dioptric Adjustment Range -10 to +10 Operation Temp. Range +70ºC to -40ºC Weight 1320g Dimensions 190x215x72mm
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01356 660401
