Description
The new flagship Hawke Frontier ED X series of binoculars is designed without compromise: that is why these binoculars allow you to see more, convey images more realistically, are better protected from external influences and are more convenient to use than you might expect. The wide-angle eyepiece design allows you to see more, thanks to which the binoculars of this series have the widest possible field of view and clearly focus on objects at a distance of just two meters. The transmission of realistic images, both in shape and in color and contrast, is ensured by lenses made of low dispersion ED glass and special anti-reflective, phase-contrast and dielectric coatings of the optical surfaces. Protection from external influences is achieved due to the robust magnesium body, complete waterproofness, nitrogen filling, water-dirt-repellent coating of the lenses and the presence of protective caps attached to the lenses and strap. The convenience and pleasure of using these binoculars lies not only in their compact ergonomic design, but also in the precision of assembly and operation of the mechanical units, the quality of the materials of the external finish, and, last but not least, in the accessories that ensure reliable storage, transportation, and speed of operation with the binoculars. Hawke Frontier ED X binoculars give a feeling of complete immersion in the observed landscape.
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In 2019, this binocular was recognized as the winner in the Best Birdwatching Binoculars 2019 category according to an authoritative online publication.
Extra Low Dispersion Glass (optical glass with extra low dispersion) provides ideal color rendition of the image and a high degree of resolution. The refractive index of the beam of low-dispersion glass is extremely low and depends little on the frequency of light (on the spectrum). All light waves are refracted at the same angle, providing impeccable image clarity. The use of these glasses allows to minimize such an annoying aberration as chromatism. The cost of ED glass is very high, which is why manufacturers of high-tech sports optics use it only in their premium products.
Phase Correction is a special phase-correcting coating that is applied to one of the surfaces of the prism-turning system in the form of the thinnest layers. Phase correction is necessary exclusively for the Roof optical system, since, passing through such a prism, the light flux is decomposed into two parallel beams of light waves, an out-of-phase shift by half the length of the light wave occurs, which leads to a decrease in image resolution, as well as a decrease in contrast. Phase Correction corrects this shift. As a result, the image is as clear and contrasting as possible. The cost of such a coating is very high, and the application process requires precision accuracy, so only renowned optics manufacturers can afford such a technological complication. Today, the design of a modern high-quality optical device of the Roof prism system is almost unthinkable without a phase-correcting coating.
Dielectric Prism Coatings Dielectric The multi-layer coating of the prisms provides the highest value of the light reflection coefficient compared to any metal coating. This significantly reduces light loss, which ensures a clear and bright image even in low light conditions.
Hawke's fully multi-coated, broadband coatings provide uniformly high light transmission across the entire visible spectrum, delivering high contrast and colour rendition in natural tones.
BAK4 (barium crown) is a special type of optical glass used to make prisms for optical devices. This material has a lower dispersion coefficient (light scattering) than the glass used for budget models. As a result, chromatic aberration (iris at sharp transition boundaries from dark to light) is significantly reduced. In addition, a strictly defined refractive index of light allows avoiding vignetting (the phenomenon of cutting off the light beam at the edges), which ensures a uniformly bright image across the entire field of view.
Waterproof - means that the optics are sealed with an O-ring and are protected from moisture penetration when immersed in liquid for 3 minutes to a depth of 1.5 meters. The static pressure of the liquid at a depth of 1.5 meters will not cause the slightest damage to the device and will not affect its functionality. Such optics are not afraid of any weather conditions.
Fogproof - means that the body is filled with dry nitrogen N2 from the inside, which prevents moisture condensation on the internal surfaces under temperature gradients, there is no fogging from the inside, and therefore no corrosion of materials occurs under the influence of moisture. Air is removed from the device and replaced with an inert gas (in this case, nitrogen N2), which does not contain water vapor and does not condense.
The relatively low weight of magnesium and its hardness in alloys allow it to be used in various industries with increased demands on performance characteristics. Binocular bodies made of magnesium alloy are currently considered the most reliable and high-quality and are distinguished by high processing accuracy, which always has a positive effect not only on the appearance of the device, but also on the quality of the final assembly. Optics in such bodies will serve for the longest possible time.
Water Repellent Coating is a special hydrophobic coating of the lens, which is applied to the outer surfaces of the lenses. This coating protects the lenses from any accumulation of water on them (rain, snow, fog, splashes or direct immersion), as well as from the accumulation of dirt dissolved in water. Simply shake the binoculars vigorously after use in wet conditions, and water drops will be removed from the outer surface of the lenses. This will allow you to use the device in more extreme conditions and maintain full functionality of the optics.
Optical characteristics:
- Magnification: 8x
- Lens diameter, mm: 42
- Exit pupil size, mm: 5.25
- Exit pupil distance, mm: 18
- Twilight Factor: 18.33
- Aperture: 27.56
- Minimum focusing distance, m: 2
- Field of view, m/1000 m: 142
- Center distance adjustment, mm: 56÷74
- Diopter correction: +5/-5
Design features:
- Optical design: Roof prism
- Lenses: ED lenses made of extra-low dispersion glass with full multi-layer coating (Fully Multi coated) and water-repellent coating (Water repellent coating)
- Prisms: BAK4 with phase-correcting and reflective dielectric DPC coating
- Water Resistance: 100% Waterproof Case
- Anti-fog protection: thanks to hermetic sealing and nitrogen filling of the housing
- Focusing: central wheel and diopter correction ring
- Body: magnesium alloy with profiled anti-slip rubber coating
- Rotating and sliding eyecups with multiple locking positions
- The lens caps are securely attached to the body
- Possibility of mounting a tripod adapter
Equipment:
- Binoculars: body color - gray
- Protective eyepiece and lens caps
- Wide neoprene neck strap
- Semi-rigid case for transportation
- Optics cleaning cloth
Overall dimensions:
- Dimensions without packaging, mm: 140x123x58
- Dimensions in packaging, mm: 200x170x90
- Weight without packaging, kg: 0.692
- Weight in packaging, kg: 1.32
