4x50 Night Vision Binoculars Telescope with Infrared Illuminator Images and Video
| Item | YNV4X50HD |
| Optical Performance | Magnification power: 4 X 50 (optical lens: 4x, objective aperture: 50mm) |
| Eyepiece Exit Pupil Diameter: 12mm | |
| Angle Of View: 7° | |
| Objective Aperture :50mm | |
| Eyepiece Focal Length: 12.3mm | |
| F# for Objective lens: 1.3 | |
| 2m~∞ in daytime; Viewing in the darkness up to 400M (monochrome) | |
| Eyepiece Exit Pupil Distance: 8mm | |
| Infrared IR illuminator: 850mm | |
| Lens Coating: Fully Multi-Coated 7-piece optical fully-plated infrared anti-reflection film glass lens | |
| Objective Focal Length 37.5mm |
