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NATIONAL GEOGRAPHIC Binoculars 10x42 Algonquin

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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.bresser.de


Warning notes
  • WARNING! Never use this device to look directly at the sun or in the immediate vicinity of the sun. This can cause blindness.
  • Risk of blindness – Never use this device to look directly at the sun or near the sun. This can lead to a risk of blindness.
  • Suffocation risk - Children should only use the device under adult supervision. Packaging materials such as plastic bags and rubber bands should be kept out of the reach of children, as these materials pose a suffocation hazard.
  • Fire risk - Do not place the device, especially the lenses, in direct sunlight. The concentration of light could cause a fire.
  • Do not disassemble the device. In case of a defect, please contact your dealer. The dealer will contact the service center and send the device for repair if necessary.
  • Do not expose the device to high temperatures. The device is intended for private use only. Please respect the privacy of others. Do not use this device, for example, to look into apartments.
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