1. What Is the LG3050 Binocular Laser Rangefinder?
The LG3050 is a binocular laser rangefinder: a full binocular optic with a built-in 905 nm laser distance meter, an angle sensor and a high-transmittance LCD, sold in the LG3050 series as the 10x52 LG30-1050 and the 12x52 LG30-1250.
It is built for hunters, shooting sports players, golfers, security patrols and forestry and power-line surveyors who need to know not only how far away a target is, but also how high it sits, at what angle it lies and how fast it is moving. Rather than interrupting your aim to read a separate display, the LG3050 projects the measurement onto the screen you are already looking through, so the target stays in view and the data stays in one place.
Six measurement modes are built in: Single, Continuous (SCAN), Two-Point (P-P), Speed, Ballistic and Digital Compass. Distance units switch between metres and yards. In short, the LG3050 is one instrument that does the work of a binocular, a laser rangefinder, an inclinometer, a speed meter and a compass.
2. Key Specifications at a Glance
| Specification | LG30-1050 | LG30-1250 |
Magnification | 10x | 12x |
Objective lens diameter | 52 mm | 52 mm |
Eyepiece diameter | 26 mm | 26 mm |
Exit pupil diameter | 5.13 mm | 5.0 mm |
Eye relief | 17.9 mm | 17.0 mm |
Field of view | 6.0° / 105 m at 1000 m / 315 ft at 1000 yds | 5.6° / 98 m at 1000 m / 294 ft at 1000 yds |
Light transmission | 80% | 85% |
Resolution | 5.33 arcsec | 4.40 arcsec |
Near focus distance | 3.5 m | 3.0 m |
Prism | Roof prism, BAK4, 18 mm | Roof prism, BAK4, 18 mm |
Lens coating | Fully multi-coated, 420 - 905 nm, reflectance below 0.5% (average) | Fully multi-coated, 420 - 905 nm, reflectance below 0.5% (average) |
Interpupillary distance | 56 - 74 mm | 56 - 74 mm |
Diopter adjustment | -4 to +4, right-eye diopter ring | -4 to +4, right-eye diopter ring |
Focus type | Centre focus | Centre focus |
Maximum ranging range | 5 - 2000 m | 5 - 2000 m |
Ranging accuracy | ±0.5 m + 1% | ±0.5 m + 1% |
Angle measurement | ±90° | ±90° |
Laser wavelength and class | 905 nm, Class 1 | 905 nm, Class 1 |
Display | Black high-transmittance LCD | Black high-transmittance LCD |
Waterproof / fogproof | IPX7, nitrogen filled | IPX7, nitrogen filled |
Battery | CR2 lithium 3 V | CR2 lithium 3 V |
Operating temperature | -20°C to +50°C | -20°C to +50°C |
Body material | PPS with textured rubber armouring | PPS with textured rubber armouring |
Colour options | Military Green / Black | Military Green / Black |
3. Why Buyers Choose the LG3050
3.1 Higher Measurement Accuracy, and More Than Just Distance
The LG3050 combines ±0.5 m + 1% ranging up to 2000 m with ±90° tilt, two-point height difference, target speed, and a 360° compass. Hunters, surveyors, and shooters get slope, height drop, and compensated angle in the field—no manual math.
3.2 A 50 mm-Class Objective Lens Where the Market Gives You 42 mm
The LG3050's 52 mm objective gathers more light for a wider, brighter, more color-neutral view and comfortable extended use.
3.3 An Oversized 26 mm Eyepiece
A 52 mm objective and rare 26 mm eyepiece keep exit pupils at 5.13/5.0 mm (10x/12x) for bright low-light images, with 17.9/17.0 mm eye relief for glasses-friendly comfort.
3.4 Premium Optics and a Rugged, Drop-Resistant Body
Fully multi-coated BAK4 optics (420–905 nm, <0.5% reflectance) eliminate edge distortion and yellow fringing with even center-to-edge color. The drop-resistant, rubber-armored PPS body comes in Military Green or Black.
3.5 IPX7 Waterproof and Nitrogen Filled
A seven-level waterproof housing with dry nitrogen fill seals out rain, dust, and condensation, preventing the internal fogging that plagues cheaper binoculars. Optics stay clear in bad weather, at altitude, and after a night in the vehicle.
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