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The optical system provides ≥87% transmission, a 6.1° field of view, 5.25mm exit pupil and 21.1mm eye relief.
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.
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.
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.
| 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 |
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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