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Home Binoculars Helios Binoculars Helios Lightquest 20x80 HR Observation Binoculars
Helios LIGHTQUEST-HR observation binoculars combine top features in mechanical and optical design, with outstanding performance to match and with 80mm aperture lenses they gather a huge amount of light for low light conditions or astronomy, an exit pupil of 4mm is and ideal specification for astronomical viewing.
They are fully waterproof (IPX7 standard, 0.5m 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 for an instrument of this size, whilst maintaining a very robust structure. The body is covered in stylish protective rubber armouring.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 packageSupplied with captive objective lens caps, eyepiece rainguard, neoprene neck strap and heavy-duty tripod adaptor (attached to binocular in photo), in padded durable fabric carrying case. Specification 20x80 Magnification 20x Object Lens Diameter 80mm Field of view 3.3° Field of View at 1000m 58m Exit Pupil Diameter 4mm Nearest Focus Distance 23m Eye Relief 16mm IP Distance Range 56mm-74mm Dioptric Adjustment Range -10 to + 10 Operation Temp. Range +70°C to -40°C Weight 2490g Dimensions 300x245x98mm
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