Item: 8x20 Phone Monocular Telescope Magnification: 8X Objective Diameter: 20mm Eyepiece Diameter: 16mm Exit Pupil: 2.5mm Eye relief: 8.5mm FOV: 10.6 degree Size: 85x23mm Weight: 150g Prism: Roof Bak7 prism> Coating: FMC Color: Black Lens Material: Full optical glass Eye Cup: Twist-up Eye Cup Body Material: Metal Frame+Rubber Surface Waterproof: Life Waterproof
Note: Do not use this product to directly observe the strong light source such as the sun, otherwise it will cause permanent damage to your eyes.
Product Features: 1. Small size and easy to carry for outdoor sports; 2. Anti-skid design for better use and protection; 3. BAK7 prism material for better imaging and visual feelings; 4. Multilayer FMC green film coated for clearer images.