| Model NO. | SFA4/15-45X50 |
| Magnification | 15-45X |
| Usage | Bird Watching/Hunting, Travel |
| Lens Type | Prime Lens |
| Objective Aperture | 30~50mm |
| Focusing Type | Center Focusing |
| Aperture | 50-100mm |
| Objective Diameter | 52mm |
| Front Lens Diameter | 73mm |
| Eyepiece Diameter(mm) | 16mm |
| Transport Package | Carton |
| Specification | Aluminum Alloy, Optical Glass |
| Trademark | Dontop/OEM |
| Origin | China (Mainland) |
| HS Code | 90058090 |
| Production Capacity | 5000PCS/Week |