ASK AN EXPERTDescription
- Elite Optical System offers excellent dawn-to-dusk light transmission for a bright image, elite-level glare reduction in harsh light, and the resolution and clarity
- A built-in 1/4-20 rotatable tripod adapter port makes it easy to mount to a tripod
- Ergonomic design ensures Leupold's products are slim, lightweight, and fit well in your hands no matter what size they are
- All-day glassing comfort with increased contact area, and a flexible ergonomic design
- Features an extremely smooth focusing system for fine adjustments
- Removable twist-up eyecups allow you replace them in the field if damaged
- Line of Sight (LOS) calculates the distance to a target in a straight line, regardless of any incline or decline
- Bow Mode uses the distance and the angle of a shot to calculate a ballistic equivalent to the target for more accurate uphill and downhill shots
- True Ballistic Range (TBR) technology provides ballistically calculated ranges for extremely accurate shots at longer distances and steeper angles
- Waterproof and fogproof
When speed is paramount, there's no substitute for a range-finding binocular. The BX-4 Range HD TBR/W 10x42mm Binocular fuses Leupold's DNA engine and ballistics software with the optical performance diehard hunters and shooters demand. Now you can spot and range targets without wasting valuable seconds switching between gear. Its high-contrast red OLED display delivers visible readouts in any light, and its edge-to-edge clarity makes glassing sessions easy on the eyes. The next time you're packing for a match or hunt, cut the excess. Take the BX-4 Range HD TBR/W.
This time-saving combo of tech and glass is built around our Elite Optical System. It delivers excellent dawn-to-dusk light transmission for a bright image when it matters most, elite-level glare reduction in harsh light, and the resolution and clarity you can count on in the backcountry. Compare it to other range-finding binoculars in its class, and you'll see a difference, especially in low light.
But that's just half of what this optic is all about. Its 10x magnification provides a large field of view for glassing in tight areas while still being powerful enough to make positive IDs from a distance. And when you finally spot your target, one press of the power button will tell you exactly how far to send your rounds.
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Warranty Information
| Magnification | 10x |
| Objective Lens Diameter, mm | 42 |
| Field of View (FOV) @ 1000yds, ft | 334 |
| Field of View, deg | 6.2° |
| Eye Relief, mm | 17 |
| Close Focus Distance, ft | 13 |
| Interpupillary Distance, mm | 56-76 |
| Dioptric Correction, dpt | -3.5 / 3.5 |
| Light Transmission Left Channel, % | 81 |
| Light Transmission Right Channel, % | 80 |
| Accuracy to 125, yd | 1 |
| Accuracy to 1000, yd | 1 |
| Accuracy above 1000, yd | 0.2 |
| Battery Life | 3000 |
| Battery Type | CR2 |
| Max Range, yds | 1100 (Deer) 1600 (Trees) 2600 (Reflective) |
| Min Range, yds | 12 |
| Laser Classification | Class 1M |
| Tripod Compatible (1/4-20) | Yes |
| Rifle Angle Compensation | TBR/W |
| Archery Angle Compensation | Bow Mode |
| True Ballistic Range - Wind (TBR-W) | Yes |
| Horizontal Distance (Trig) | No |
| Archer's Advantage | No |
| Display Type | OLED |
| Flightpath | No |
| Guard-ion Lens Coating | Yes |
| Last Target Mode | No |
| Trophy Scale | No |
| Length , in | 5.9" |
| Weight, oz | 39 |
