INJIE Guiying 12×50 ED High-Definition Low-Light (Non-Infrared) Binoculars
INJIE Guiying 12×50 ED Binoculars
High Magnification • ED Optics • Low-Light Optimized • Non-Infrared
The INJIE Guiying 12×50 ED binoculars are designed for users who require higher magnification and superior image precision in demanding environments. Featuring ED glass elements, BaK4 roof prisms, and fully multi-coated optics, they deliver enhanced clarity, strong contrast, and natural color reproduction — even in low-light conditions.
Optical Performance
ED (Extra-Low Dispersion) Glass
ED glass minimizes chromatic aberration caused by wavelength dispersion, particularly noticeable in long-distance viewing. By bringing different wavelengths into the same focal plane, it significantly reduces color fringing and improves sharpness, contrast, and true-to-life color accuracy.
BaK4 Roof Prism System
High-refractive-index BaK4 prisms provide better light transmission than standard BK7 prisms, resulting in brighter, clearer images with improved edge definition and reduced distortion — especially beneficial at dusk or in dim environments.
Fully Multi-Coated (FMC) Optics
All air-to-glass surfaces are treated with multi-layer broadband coatings to ensure balanced light transmission across the visible spectrum and natural color fidelity.
Built for Outdoor Durability
Nitrogen-Filled & IPX7 Waterproof
Nitrogen purging prevents internal fogging and moisture buildup. Rated IPX7, the binoculars withstand immersion up to 1 meter for 30 minutes under controlled conditions, ensuring reliable performance in rain or humid environments.
Modern Ergonomic Construction
Lightweight yet durable composite housing enhances structural strength while maintaining balance. Anti-slip side panels improve grip stability, and the ergonomic design supports comfortable long-term observation.
Technical Specifications
| Specification | Details |
|---|---|
| Magnification | 12× |
| Objective Lens Diameter | 50 mm |
| Eyepiece Diameter | 24 mm |
| Prism Type | Roof Prism |
| Prism Material | BaK4 |
| Optical Glass | ED |
| Coating | Fully Multi-Coated (FMC) |
| Focus System | Central Focus |
| Exit Pupil | 4.2 mm |
| Eye Relief | 13.5 mm |
| Angular Field of View | 4.9° |
| Field of View | 86 m @ 1000 m • 258 ft @ 1000 yds |
| Close Focus | 2.2 m |
| Twilight Factor | 24.5 |
| Relative Brightness | 17.6 |
| Light Transmission | 82% |
| Resolution | 3.6″ |
| Diopter Adjustment | ±4D |
| IPD Range | 56–77 mm |
| Waterproof Rating | IPX7 |
| Dimensions | 140 × 60 × 178 mm |
| Weight | 1050 g |
| Tripod Adaptable | Yes (Standard Tripod Thread) |
Applications
Outdoor Travel & Exploration
Wildlife Observation
Sports & Live Events
Maritime & Coastal Monitoring
Power & Industrial Inspection
Forestry Survey
Security & Patrol
Military Observation
Archaeological Research
Railway & Land Survey
What’s in the Box
12×50 ED Binoculars
Eyepiece Covers
Carrying Pouch
Neck Strap
Cleaning Cloth
User Manual
Warranty Card
Retail Gift Box