Description
The Hawke Nature Trek 20-60x80/45 WP (55201) spotting scope can be seen from a distance with its modern design and the reliability of its mechanical components. As befits the optics of this class, the tube has a prominent eyepiece, the surface has a multi-coated lens, the prism is made from BAK4 optical glass, the polycarbonate body is completely waterproof and filled with nitrogen. Varto also means handiness for close-range caution, despite the extremely short focusing distance. The field's dry cover is very strong, so you don't have to remove it from the pipe when it's time to turn it off, so you can save an hour by protecting the tool.
As befits a professional optician, the eyepiece of the Hawke Nature Trek spotting scopes is distinguished and distinguished. The Hawke Nature Trek eyepiece extends 45º from the rear axis of the tube - making it ideal for holding both table-top and full-size tripods. The housing is checked along its lateral axis and there is a number of fixing positions for easy precise installation in a horizontal or vertical position, against the possibility of fixing under any cut. The visible sunshade will protect the lens not only from dreamy reflections, but also from specks. The mounting base of the tube is adapted for standard mounting of a photo tripod, so finding the necessary support for safety is not a problem.
Features:
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 at 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.
Today, polycarbonate is increasingly being used for housings of optical devices. This material is completely justified by its minimal strength, chemical, thermal, mechanical resistance and ease of processing. Polycarbonate housings are lightweight and shockproof. The stench does not attract additional expensive finishing treatment, such as anodizing or prefabricating.
