Description
Compact binoculars Pentax UP 8x21 (61801) meet current standards: highly spherical coated lenses, prisms made of high-oxide optical glass BaK4. Updated lens coatings with reduced light transmission create crystal-clear images. The body of the vibrator has a humic coating, which provides additional protection against mechanical damage. The Pentax UP 8x21 binocular model (61801) is intended for travel at high prices, for keeping an eye on wildlife, etc.
The manufacturer of the Pentax trademark values the high viscosity of its products, so in order to include parts on the market, each unit of Pentax optics is assigned a unique serial number at the manufacturer's factory, which is always possible Identify the quality of the product and ensure that you have a truly original, high-quality optical device.
Features of binoculars:
- Fully-multi-coated Highly multi-coated optics provide, however, high light transmittance across the entire visible spectrum and provide high contrast and color rendition 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 low 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.
- Aspherical lens elements Clarity across the entire field of vision is a vital element of comfortable caution. For which PENTAX uses aspherical lenses. The purpose of the lens is a special shape to reduce aberration to a minimum.
- Inner Focus Optics Design This foldable optical design is essential to guarantee long-term binocular performance. Internal focusing technology significantly increases the reliability of binoculars. Vaughn crosses the middle of the saw and vologists, protecting the folding optical design from external factors.
- Superb impact resistance External gum coating of the body ensures reliable protection from forging and resistance to impacts.
- Adjustable eyecups. It is easy and precise to adjust to the required and comfortable position, which makes it possible to use the binoculars both with and without eyepieces.
