Product Description
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 making them perfect for astronomy, an exit pupil of 5mm is regarded as perfect for binocular astronomy.
Further details
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 package
Supplied 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 16x80
Magnification 16x
Object Lens Diameter 80mm
Field of view 4.1°
Field of View at 1000m 72m
Exit Pupil Diameter 5mm
Nearest Focus Distance 26m
Eye Relief 20mm
IP Distance Range 56mm-74mm
Dioptric Adjustment Range -10 to + 10
Operation Temp. Range +70°C to -40°C
Weight 2490g
Dimensions 312x245x98mm
01356 660401
