Vixen AT Series Binoculars, Dark Brown x Black, AT4, M4x18, 14641-3

1. Objective Lens Effective Diameter: 18mm 2. Magnification: 4x 3. Prism Material: BK7 4. Coating: PFM Coating 5. Actual Field of View: 9.2° 6. Apparent Field of View: 35.7° 7. Field of View at 1000m: 161m 8. Exit Pupil Diameter: 4.5mm 9. Brightness: 20.3 10. Eye Relief: 18mm 11. Minimum Focus Distance: 55cm 12. Tripod Mount: Not Available 13. Eyepiece Range: 58-75mm 14. Waterproof: Not Available "Enjoy impressive close-up binocular viewing of national treasures and swords!" [Close-up 55cm] The AT4 binoculars can focus as close as 55cm, allowing you to observe objects at a distance that may seem close but is difficult to reach. Furthermore, because they are binoculars, they offer a three-dimensional effect that is difficult to achieve with monoculars. It's perfect for observing distant landscapes, flowers at your feet, or artwork in an inaccessible museum.

[PFM Coating for Clear Vision] The PFM coating features three or more layers of anti-reflective coating on the entire lens and prism optical surfaces. By reducing reflections on the lens surface, light loss is eliminated, ensuring a bright, clear view. Despite its compact size, it produces bright, sharp images even in dimly lit environments.