8x42 Binoculars Aperture_40mm Twist-up eyecups for adjustable viewing

Twist-up eyecups for adjustable viewing comfort

and high-reflective dielectric coatings for maximum contrast and clarity

while the built-in compass adds a fun and functional touch for navigating the night sky

Draw Tube Thread M82 x 1

As you move the telescope

8x42 Binoculars Aperture_40mm Twist-up eyecups for adjustable viewingThe popularity of the National Geographic 8x42 Roof Prism Binocular is due to its large aperture that produces bright images and high resolution, enough magnification for serious nature studies and spectator sports, in a comfortable to hold roof prism design. Use the large rear wheel to keep your feathered friend in focus, and observe his behavior in crystal clarity through the coated BaK 7 lenses. Extended bird watching sessions in the wild are a