NATIONAL GEOGRAPHIC 8x42 waterproof Binoculars
Binoculars National Geographic 10x42 is a universal instrument for nature observation, equipped with diopter adjustment, BaK4 glass prisms, multi-layer FMC coatings offering contrasting, faithfully color images. A roof-prismatic, waterproof construction covered with rubber ensures comfort of use in various conditions. The relatively small size combined with a 42 mm lens diameter lens provides a wide range of applications: in tourism or bird watching.
 
The solution of attaching the lens covers allows for their quick exposure and covering, while at the same time protecting the elements of the optics from damage during use and storage.
 
Equipping binoculars with a tripod socket allows you to place the binoculars on a tripod using an optional adapter and conveniently conduct long observations. Twisted eyecups provide comfort of observation for people wearing glasses.
 
Technical parameters
 
• Zoom:    10x
• Lens diameter:    42 mm
• Output:    4.2 mm
• Twilight efficiency:    20,49
• Field of view:    5.8 ° (101 m / 1000 m)
• Prisms:    roof, BaK-4
• Layers:    FMC, blue
• Water resistance:    yes, filled with nitrogen
• Dimensions:    150 x 130 x 55 mm
• Weight:    710 g
• Included:    caps, case, buoyancy strap