8x42 / 10x42 IPX7 Waterproof Binoculars
Bring distant detail closer with an 8x42 binocular that feels easy to pack and quick to bring along.
BAK4 prisms, SMC coatings, and phase-corrected prisms and a confidence-inspiring build make it a strong pick for 8x42 for steadier all-round birding, travel, and 10x42 for more reach from the same platform.
Technical Specifications
| Category | Binoculars |
|---|---|
| Series | Beta 2 42 |
| Available Variants | B2 8x42 and B2 10x42 |
| Objective Lens Diameter | 42 mm |
| Prism Material | BAK4 |
| Lens Coating | SMC |
| Phase Coating | No |
| Close Focus | 4 m |
| Lens Elements | 6 |
| Eyecups | Three-step twist-up eyecups |
| Diopter Adjustment | +/- 3 dpt |
| Interpupillary Distance | 53 to 72 mm |
| Tripod Interface | 1/4-20UNC |
| Waterproof Rating | IPX7 nitrogen-filled waterproof and fog-resistant construction |
| Working Temperature | -20 to 55 degrees C |
| Body Material | Polymer body with eco rubber armor |
| Included Accessories | Imported kraft paper box, Asika soft pouch L, Asika neck strap, Asika cleaning cloth, Asika drawstring pouch, and user manual |
| 8x42 Eyepiece Diameter | 21 mm |
| 8x42 Field of View | 6.3 degrees, 110 m at 1000 m, 330 ft at 1000 yds |
| 8x42 Apparent Field of View | 47.5 degrees |
| 10x42 Eyepiece Diameter | 19 mm |
| 10x42 Field of View | 5.8 degrees, 101 m at 1000 m, 304 ft at 1000 yds |
| 10x42 Apparent Field of View | 53.7 degrees |
| Best For | 8x42 for steadier all-round birding and travel, 10x42 for more reach from the same platform |
| Stated Transmission | 80% |
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| Category | Binoculars |
|---|---|
| Series | Beta 2 42 |
| Available Variants | B2 8x42 and B2 10x42 |
| Objective Lens Diameter | 42 mm |
| Prism Material | BAK4 |
| Lens Coating | SMC |
| Phase Coating | No |
| Close Focus | 4 m |
| Lens Elements | 6 |
| Eyecups | Three-step twist-up eyecups |
| Diopter Adjustment | +/- 3 dpt |
| Interpupillary Distance | 53 to 72 mm |
| Tripod Interface | 1/4-20UNC |
| Waterproof Rating | IPX7 nitrogen-filled waterproof and fog-resistant construction |
| Working Temperature | -20 to 55 degrees C |
| Body Material | Polymer body with eco rubber armor |
| Included Accessories | Imported kraft paper box, Asika soft pouch L, Asika neck strap, Asika cleaning cloth, Asika drawstring pouch, and user manual |
| 8x42 Eyepiece Diameter | 21 mm |
| 8x42 Field of View | 6.3 degrees, 110 m at 1000 m, 330 ft at 1000 yds |
| 8x42 Apparent Field of View | 47.5 degrees |
| 10x42 Eyepiece Diameter | 19 mm |
| 10x42 Field of View | 5.8 degrees, 101 m at 1000 m, 304 ft at 1000 yds |
| 10x42 Apparent Field of View | 53.7 degrees |
| Best For | 8x42 for steadier all-round birding and travel, 10x42 for more reach from the same platform |
| Stated Transmission | 80% |
Bring distant detail closer with an 8x42 binocular that feels easy to pack and quick to bring along.
BAK4 prisms, SMC coatings, and phase-corrected prisms and a confidence-inspiring build make it a strong pick for 8x42 for steadier all-round birding, travel, and 10x42 for more reach from the same platform.
- 8x42 delivers a confident balance of reach, brightness, and everyday usability.
- BAK4 prisms, SMC coatings, and phase-corrected prisms help keep the view clearer, brighter, and more natural.
- Weather-ready construction adds confidence for outdoor carry and changing conditions.
- Accessories like imported kraft paper box, asika soft pouch l, asika neck strap, and asika cleaning cloth help it feel ready right out of the box.
Choose the version that matches how you like to watch
Different variants give you room to match the optic to your routine instead of settling for a one-size-fits-all setup. Whether you want a wider, easier view or a little more reach, the lineup makes it easier to pick the version that feels right in your hands and in the field.

Comfortable handling helps you settle the view faster
Details such as three-step twist-up eyecups make it easier to get comfortable, dial in focus, and stay with the scene longer. That everyday ease matters because the best optic is the one that feels natural enough to use often.

Built to go outside with more confidence
Ipx7 nitrogen-filled waterproof and fog-resistant construction gives you extra peace of mind when conditions are damp, misty, or unpredictable. Combined with a secure body design, it helps the optic feel ready for real outings instead of being something you only trust in perfect weather.

Clear optics make every scene look brighter and more natural
BAK4 prisms, SMC coatings, and phase-corrected prisms work together to keep the image cleaner, with better contrast and a more natural sense of detail. That means you can enjoy a view that feels sharper and more premium from the first glance, whether you are watching wildlife, landmarks, or open landscapes.

Everything you need is in the box to get started quickly
With imported kraft paper box, asika soft pouch l, asika neck strap, asika cleaning cloth, and asika drawstring pouch included, the package feels complete from the moment it arrives. That means less hesitation, less extra shopping, and a smoother start whether you are buying for yourself or giving it as a thoughtful gift.

Why It Performs in the Field
Expect a brighter, calmer view with the kind of coatings and optical design that make detail easier to catch when the light changes or the distance stretches out.
The shape, balance, and weather-ready build are chosen to feel comfortable in real use, so longer walks, travel days, hides, and shoreline sessions stay enjoyable.

