Description
The Endurance series binoculars from Hawke Optics have proven themselves as optical devices with optimal performance, high brightness and an optimal price. The updated line of Hawke Endurance Top Hinge ED binoculars significantly distinguishes itself from its predecessors and not only with its compact, ergonomic and modern design, but, most importantly, with a higher class of optics. Low dispersion ED lenses guarantee almost perfect color transfer without chromatic distortion. BAK4 barium crown prisms coated with phase correction coatings provide the required image clarity and contrast. The modern design of the magnesium body with a top bridge (Top Hinge) and rubber coating with a changeable profile ensure a comfortable and reliable grip with either one or two hands.
Extra Low Dispersion Glass (optical glass with ultra-low dispersion) ensures ideal color transfer of images and a high level of image quality. The coefficient of bending of the low-disperse glass is very low and has little to do with the frequency of the light (spectrum). All the light strands are broken to the same size, ensuring unprecedented clarity of the image. The curing of these glasses makes it possible to minimize aberration such as chromatism. The quality of ED-glass is very high, which means that manufacturers of high-tech sports optics stagnate in their premium class products.
Phase Correction is a special phase-correcting coating that is applied to one of the surfaces of the prism wrapping system in the appearance of very thin balls. Phase correction is also necessary for the Roof optical system; fragments passing through such a prism, the light flow is decomposed into two parallel beams of light fibers, and the phase displacement occurs by half the amount light color, which leads to a change in the separation of the image, as well as a decrease in contrast. Phase Correction corrects the error. As a result, the image is as clear and contrasting as possible. The quality of such a coating is very high, and the application process requires precision precision, which is so technologically advanced that optics manufacturers can only afford it. Today, without a phase-correcting coating, the design of a high-viscosity optical device of the Roof prism system is practically inconceivable.
The highly spherical wide-smooth coating of Hawke optics, however, ensures high light transmittance across the entire visible spectrum and provides high contrast and color rendering in natural tones.
BAK4 (Barium crown) is a special type of optical glass, which is used for the production of prisms for optical devices. This material has a lower dispersion coefficient (light dispersion), which is less suitable for budget models. As a result, chromatic aberration is noticeably reduced (iris at sharp intervals between the transition from dark to light). In addition, a clear indicator of light bending allows you to eliminate vignetting (the phenomenon of trimming the light beam along the edges), which ensures uniform lightness of the image across the entire field of view.
Waterproof - means that the optics are sealed with a strong O-ring and are protected from the penetration of moisture by being enclosed in a core extending 3 lengths to a depth of 1.5 meters. A static pressure at a depth of 1.5 meters does not affect the fit of the vehicle and does not affect its functionality. Such options are not scary in any weather mind.
Fogproof - means that the body is filled with dry nitrogen N2 in the middle, which prevents condensation of moisture on the internal surfaces at a temperature gradient, daily fogging in the middle, and therefore does not cause corrosion of the materials the vologgers are pouring in. The air is removed from the device and replaced with an inert gas (in this case, nitrogen N2), which does not allow water vapor in its storage and does not condense.
The alloys have relatively low magnesium content and hardness, which allows them to be used in various industrial applications with improved performance characteristics. The bodies of binoculars, made of magnesium alloy, are now highly respected and are distinguished by the high precision of processing, which will always positively affect not only the appearance of the fitting, and on the core of the end assembly. Optics in such housings will serve to extend the maximum possible time.
