National Geographic Expedition Series 10x42 Binoculars

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Description

National Geographic Expedition Series 10x42 BinocularsFeatures Combination of fully multi coated lenses and superior Bak 4 prisms creates images with excellent contrast and clarity 42mm aperture has ample light gathering capability to produce bright images 10x magnification provides crisp details at mid to long distances Binoculars are waterproof and fog proof for all weather performance Streamlined roof prism design with a sturdy single bridge 16. 9mm eye relief allows eyeglass wearers to easily enjoy a

3 mm Plossl

Often purchased with:

the center of the field of view boasts a multi-wavelength Strehl intensity of 96

reborn with the aim to produce superior-class optical figure in a short (f/6

Focal Length 635mm

Batteries One 3V CR2 Battery (included)

The magnification can be varied from 18x to 60x (focal length binoculars: focal length eyepiece = magnification)

Focal Ratio f/9

located in the base of the microscope

7 mm Eye Relief 12 mm Size 2

2-mode brightness: High / Low

2x WF10x eyepieces