| Model NO. | 4W/8X42 |
| Function | Waterproof |
| Usage | Bird Watching/Hunting |
| Lens Type | Prime Lens |
| Lens | Glass |
| Objective Aperture | 30~50mm |
| Focusing Type | Center Focusing |
| Aperture | <50mm |
| Waterproof | Yes |
| Objective Dia | 42mm |
| Nitrogen Filled | Yes |
| Field of View | 114m/1000m |
| Exit Pupil Distance | 17.5mm |
| Nearest Focusing Distance | 4m |
| Prism | Bak4 |
| Transport Package | Carton |
| Specification | 10x42 |
| Trademark | OEM or DONTOP |
| Origin | China |
| HS Code | 90051000 |
| Production Capacity | 100000PCS /Year |