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Ferolix STT-8x42F 8×42 Laser Rangefinder Binoculars | Raised-Back Roof Prism
Product Details
Practical 8×42 Optical Configuration
The STT-8x42F uses an 8×42 optical configuration with roof prisms, phase and dielectric coatings, and FMC broadband multilayer anti-reflection coating.
The optical system provides ≥87% transmission, a 6.1° field of view, 5.25mm exit pupil and 21.1mm eye relief.
905nm Laser Distance Measurement
The integrated Laser Rangefinder uses a 905nm semiconductor laser and Class 1 laser classification. Available ranging configurations include 5–1500m, 5–1800m and 5–2400m.
The specified ranging accuracy is ±0.5m + 1‰, while measurement time can be ≤0.3 seconds under high-reflection target conditions.
Flexible Measurement Functions
The system supports standard distance measurement and continuous SCAN mode, together with two-point height, angle and horizontal distance functions.
Distance processing incorporates multi-point averaging, distance gating and interference filtering to support practical field measurement.
Compact Raised-Back Housing
The STT-8x42F uses a magnesium alloy housing with modified PVC rubber protection. Its dimensions are approximately 146 × 111 × 51mm and weight is approximately 800g.
IP67/IP65 protection is specified, and an optional 1/4"-20 tripod interface can be provided.
Key Specifications
| Specification | STT-8x42F |
|---|---|
| Magnification | 8× |
| Objective Diameter | 42mm |
| Objective Configuration | F |
| Field of View | 6.1° |
| FOV at 1000m | 106.6m |
| Exit Pupil | 5.25mm |
| Eye Relief | 21.1mm |
| Optical Transmission | ≥87% |
| Prism Type | Roof Prism |
| Laser Wavelength | 905nm |
| Laser Class | Class 1 |
| Ranging Options | 5–1500m / 5–1800m / 5–2400m |
| Ranging Accuracy | ±0.5m + 1‰ |
| Measurement Modes | Distance / SCAN / Height / Angle / Horizontal Distance |
| Protection | IP67/IP65 |
| Dimensions | 146 × 111 × 51mm |
| Weight | Approx. 800g |
| Operating Temperature | -20°C to +50°C |
What is the STT-8x42F?
It is an 8×42 binocular with an integrated Laser Rangefinder and raised-back roof prism design.
Who is this model suitable for?
It is suitable for professional Outdoor Observation, surveying, forestry, field measurement and B2B optical applications.
What ranging options are available?
The product specification lists configurations covering 5–1500m, 5–1800m and 5–2400m.
B2B & OEM/ODM
Ferolix supplies optical products directly from its manufacturing operation in China. The STT-8x42F can be considered for distributor programs, importer projects and private-label optical product lines.
OEM/ODM support can cover product configuration, logo customization, packaging and product development based on project requirements.
Specification | 8×42 | 10×42 |
|---|---|---|
Magnification | 8× | 10× |
42mm (ED or Standard objective, optional) | ||
Exit Pupil | 5.25mm (brighter in low light) | 4.25mm (standard daylight) |
Eye Relief | 21.1mm (comfortable with glasses) | 15.1mm |
Field of View | 6.1° (106.6m @ 1000m / 319.6ft @ 1000yds) | |
Resolution | 4.2″ center field | |
Light Transmission | T ≥ 87% | |
Prism / Coating | Roof prism, phase + dielectric coating; FMC broadband multi-layer | |
Diopter | ±5D | |
Ranging | Class 1, 905nm; 5–1500 / 5–1800 / 5–2400m; accuracy ±0.5m + 1‰; ≤0.3s | |
Modes | Single / SCAN / Height / Angle / Horizontal Distance | |
Display | 160-segment monochrome LCD | |
Battery | CR2 (3V) or built-in rechargeable Li-poly; ~10,000 continuous readings | |
Body | Magnesium alloy + rubber armor; IP67/IP65; flat or raised rear cover | |
Dimensions / Weight | 146 × 111 × 51 mm; 790g (flat) / 800g (raised) | |
Operating Temp | −20°C ~ +50°C | |
Best For | Low-light, wide scanning, handheld, eyeglass wearers | Open terrain, long-range detail identification |
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