SA8X21 HD Outdoor 8X21 Waterproof Telescope Travel Camping Bird Watching Handheld Binoculars

• High light transmittance, clear and bright image, no color difference, outstanding performance
• Compact and lightweight, easy to carry and use
• Smooth central focus knob for quick adjusting
• Suitable for outdoor travel, bird watching, nature observing, etc.

Specification:

• Magnification: 8 times
• Field of view angle: 7°
• Focusing method: central focusing
• Optical coating: multi-layer broadband green film
• Exit pupil distance: 11nm
• Prism System: Roof System
• Objective lens diameter: 21mm
• Prism material: BAK4
• Exit pupil diameter: 1.1mm
• Close focus distance: 5M
• Waterproof type: life waterproof
• Field of view: 131m/1000m