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ALPEN OPTICS Black Tusk 10x42 ED Binoculars

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FAQ - Frequently Asked Questions

The first number indicates the magnification (here: 8x). The second number describes the objective lens diameter in millimeters (here: 42 mm).
ED glass (Extra Low Dispersion) reduces chromatic aberration (color fringing) and ensures brilliant, true-color images.

  • BK-7 (borosilicate glass): Standard, good imaging performance
  • BaK-4 (barium crown glass): Higher quality, rounder exit pupils, brighter and higher-contrast image

Product and safety instructions


Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.alpenoptics.de


Warning notes
  • Risk of physical injury! Never look directly into the sun or near the sun with this device. There is a RISK OF BLINDNESS! Children should only use the device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a SUFFOCATION RISK!
  • FIRE RISK! Do not expose the device – especially the lenses – to direct sunlight! The concentration of light can cause fires and/or burns.
  • Risk of material damage! Do not disassemble the device! In case of a defect, please contact your specialist dealer! The dealer will contact our service center and send the device for repair if necessary. Do not expose the device to temperatures above 60 °C.
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Deluxe warranty

Good prospects for frequent observers – with ALPEN's extended guarantee – More information
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Crystal-clear images with premium quality optics

Unlike the standard BK-7, the optics are made from BaK-4 glass (barium crown glass) that produces even sharper and brighter images. The high-quality BaK-4 glass optics are used in all ALPEN Optics products sold in Europe.
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More light for clearer images

The optics are fully coated with a premium multi-layer coating, which increases the light transmission to up to 95% to produce stunningly bright images.
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Weatherproof design

The binoculars are filled with nitrogen, which prevents the inside of the lenses from fogging up and obstructing your view during abrupt changes in temperature.
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Waterproof design

The housing features a splashproof design, which protects the optics during rain and adverse weather.
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Easily adjustable for glasses wearers

Thanks to the twist-up eyecups, the design is also suitable for people who wear glasses. The distance between your eyes and the lenses can be easily adjusted to allow you to see the complete field of view.
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Fine tune to your vision

The built-in dioptre adjustment allows you to quickly adjust the optics to your vision and compensate for differences between your left and right eyes.
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Tripod connection thread

Thanks to the tripod connection thread, the optics can be quickly mounted on a tripod so that you can enjoy shake-free images of animals or nature.
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Bright images, even on dark days

The binoculars feature a premium HR metal prism coating that significantly increases the light transmission and lets more light into your eyes. The result: bright and impressive images, even in challenging light conditions.
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Special coating for more clarity and contrast

Thanks to the first-class PXA phase coating, these binoculars allow you to take in every detail in crystal-clear, high-contrast images.
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Nitrogen filling

The temperature can change rapidly when you’re out in the wild. To prevent the lenses from fogging up on the inside and obstructing your view, the optics are filled with nitrogen.
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Stunning true-colour images

The high-performance ED glass significantly reduces scattered light and prevents chromatic aberration, enabling you to observe true-colour, brilliant images of wild animals, landscapes and more.
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