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Home Binoculars Helios Binoculars Helios Lightquest 25x100 HR Observation Binoculars
Helios LIGHTQUEST-HR observation binoculars combine top features in mechanical and optical design, with outstanding performance to match. With large 100mm lenses these are perfect for astronomy, with the 4mm exit pupil for stargazing making the most of all the available light combined with a powerful 25x magnification.
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. Caged prisms offer a very good level of shock resistance. 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.Features adjustable integral tripod mounting column with central stabilising bar.Included in the packageSupplied with captive objective lens caps and eyepiece rainguard in foam-lined hard storage/carrying case. Specification 25x100 Magnification 25x Object Lens Diameter 100mm Field of view 2.7° Field of View at 1000m 47m Exit Pupil Diameter 4mm Nearest Focus Distance 34m Eye Relief 16mm IP Distance Range 56mm-74mm Dioptric Adjustment Range -7 to +18 Operation Temp. Range +70°C to -40°C Weight 3990g Dimensions 368x265x120mm
very happy with these binoculers worth every penny i was realy pleased with my binoculers and my tripod both from harrisons.they were extremely helpful i telephoned 4 times and nothing was too much trouble.the advice i was given was spot on.good sound advice for the binoculers and also the tripod.i would definately reccomend harrisons scopes ....... (09/07/2017) stuart whysall - rotherham south yorkshire
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