Description
The Hawke Nature Trek 13-39x56 WP (55211) spotting scope is an ultra-compact optical device with the ability to magnify up to 39x, which can easily be placed on the back, and thus ensures image clarity, leveled with full-size spotting scopes. This model has long been distinguished by its modern design and the reliability of its mechanical components. As is consistent with this class of optics, the pipe has a multi-coated lens, the prism is made from BAK4 optical glass, the polycarbonate body is completely waterproof and purged with nitrogen. The polyurethane neoprene casing is very durable and can be removed from the pipe within an hour or so, saving time by protecting the device from external spills.
The Hawke Nature Trek 13-39x56 WP (55211) telescope is an optical device with the size of a monocular and the image brightness of a telescope. The folding multi-lens eyepiece has a large external lens diameter, which ensures a much clearer image than a standard monocular. The Hawke Nature Trek eyepiece is parallel to the later axis of the tube - it is very handy for caution when in a car from the window tripod that comes with the tube. 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. Of particular note is the focusing system, which is located in front of the great ring that surrounds the body in the middle. This constructive solution allows for adjustments to be made with great accuracy due to the very large radius of the focusing ring. The minimum focusing distance of the tube is only 4 meters, which allows you to monitor in detail what you can practically do in front of you. And a large field of view provides panoramic images of objects on view.
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) and 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 reinforced 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 weather opinions are not scary.
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 contain water vapor and does not condense in its storage.
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 at the same time flexible. The stench does not attract additional expensive finishing treatment, such as anodizing or prefabricating.
