Built for observers who demand long-range precision and natural color accuracy, the APRESYS H1042ED combines premium ED optics, fully multi-coated lenses and a rugged waterproof magnesium alloy body in a lightweight 10x42 platform designed for birdwatching, wildlife tracking and outdoor exploration.
- Premium ED low dispersion glass for true-color clarity
- 10x magnification for detailed long-distance observation
- Fully multi-coated FMC optics with enhanced light transmission
- Phase-coated BAK4 prism system for sharp edge-to-edge viewing
- Lightweight magnesium alloy body with ergonomic rubber armor
- Waterproof and nitrogen-filled for fog-free outdoor reliability
- Long eye relief design for comfortable extended observation
- Compact 10x42 configuration optimized for birdwatching and hiking

Precision ED Optics for True-to-Life Observation
The APRESYS H1042ED is engineered for users who require exceptional optical clarity during extended outdoor observation. Equipped with premium ED (Extra-Low Dispersion) glass, it significantly reduces chromatic aberration and delivers sharp, color-accurate images with remarkable edge detail.
From distant wildlife to fast-moving birds in flight, the H1042ED provides a clean and immersive viewing experience without the distracting color fringing commonly found in standard binoculars.
The result is a more natural image with improved visual comfort, even during long observation sessions.

Engineered for Brightness and Optical Transparency
A precision optical system combining fully multi-coated FMC lenses and phase-coated BAK4 prisms maximizes light transmission and image sharpness across the entire field of view.
The advanced 7-layer coating system enhances:
- Low-light image performance
- Optical contrast and resolution
- Natural color balance
- Glare reduction and transparency
With light transmission reaching up to 83%, the H1042ED performs reliably from sunrise observation to low-light outdoor environments.

10x42 Power for Long-Range Detail
The 10x42 optical configuration provides an ideal balance between magnification, brightness and portability.
With 10x magnification and a 42mm objective lens, the H1042ED is optimized for:
- Birdwatching at extended distances
- Wildlife observation in open terrain
- Mountain and coastal viewing
- Outdoor sports and travel
- Nature exploration and hiking
The 6.7° field of view allows users to maintain strong situational awareness while still achieving excellent distant detail recognition.

Lightweight Magnesium Alloy Construction
Built with a durable magnesium alloy chassis, the H1042ED maintains professional-level structural rigidity while remaining lightweight enough for all-day field use.
The exterior is finished with environmentally friendly rubber armor for:
- Secure non-slip handling
- Improved outdoor durability
- Shock resistance
- Comfortable grip in wet or cold environments
Its compact body design makes it highly suitable for portable outdoor carry without unnecessary bulk.

Waterproof Performance for Harsh Environments
The H1042ED is nitrogen-filled and waterproof up to 2 meters for 10 minutes, preventing internal fogging caused by humidity and rapid temperature changes.
Designed for reliable performance in:
- Rain and fog
- Humid forests
- Cold-weather environments
- Coastal conditions
- High-altitude outdoor travel
This sealed optical structure ensures dependable clarity under demanding field conditions.

Comfortable Viewing for Extended Observation
With a 4.2mm exit pupil and 16.7mm eye relief, the H1042ED provides a comfortable and stable viewing experience during prolonged observation.
The twist-up eyecups allow easy adjustment for both eyeglass and non-eyeglass users, helping reduce eye strain during extended outdoor use.
Birdwatching and Wildlife Observation
Track birds in motion and observe distant wildlife with sharp detail and accurate color reproduction.
Hiking and Outdoor Exploration
Lightweight magnesium construction makes the H1042ED ideal for hiking, camping and travel environments.
Long-Range Nature Viewing
The 10x42 optical system provides enhanced distant viewing performance while maintaining balanced brightness and image stability.
Technical Specifications
| Specification |
Details |
| Model |
H1042ED |
| Magnification |
10x |
| Objective Lens Diameter |
42mm |
| Prism System |
BAK4 Phase Coated |
| Lens Coating |
Fully Multi-Coated (AR02) |
| ED Glass |
Yes |
| Exit Pupil |
4.2mm |
| Eye Relief |
16.7mm |
| Field of View |
6.7° |
| Field of View @1000YDS |
383.8ft |
| Field of View @1000M |
117m |
| Near Focus |
≤2m |
| Brightness |
17.6 |
| Light Transmission |
≤83% |
| Focus System |
Center Focus + Right Diopter |
| Eyecups |
Twist-Up |
| Waterproof Rating |
2m / 10min |
| Nitrogen Filled |
Yes |
| Body Material |
Magnesium Alloy |
| Weight |
Approx. 690g |
| Dimensions |
132 × 155 × 55mm |