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NATIONAL GEOGRAPHIC Explorer 8x42 Binoculars

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Guides & Tips

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
  • RISK OF BLINDNESS! Never look directly at the sun or near the sun with this device. There is a RISK OF BLINDNESS!
  • Do not expose the device – especially the lenses – to direct sunlight! The concentration of light could cause fires.
  • Do not disassemble the device! In case of a defect, please contact your specialist dealer. They will contact the service center and may send the device in for repair if necessary.
  • Do not expose the device to high temperatures.
  • PRIVACY PROTECTION! The binoculars are intended for private use. Respect the privacy of others - do not use this device, for example, to look into people's homes!
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