A rugged, high-clarity 35mm binocular
The TFN PHY35 Binoculars are designed for users who require bright, stable, and high-contrast imaging in demanding outdoor environments. Featuring a 35 mm large-aperture optical system with fully multi-coated (FMC) lenses and premium BaK4 roof prisms, the PHY35 delivers clear, color-accurate visuals even in low-light conditions.
- 35 mm Large Aperture Optical System
- Fully Multi-Coated FMC Green Lenses
- Premium BaK4 Roof Prism System
- Anti-Glare Internal Baffling Design
- IPX7 Waterproof & Fog-Proof Construction
- Nitrogen-Purged Optical Tube
- 117 m / 1000 m Wide Field of View
- 2 m Minimum Close Focus Capability
- 18.1 mm Long Eye Relief
- Ergonomic Shock-Resistant Rubber Armor
Bright, High-Transmission Optics for Low-Light Performance
The PHY35 uses a 35 mm large objective lens combined with fully multi-coated FMC green optics to maximize light intake. This enables brighter imaging during dawn, dusk, and cloudy environments, significantly improving visibility compared to standard compact binoculars.
Premium BaK4 Prism System with Anti-Glare Control
High-quality BaK4 roof prisms ensure accurate light transmission and eliminate internal scattering. Combined with edge blackening and anti-reflective coatings, the system produces sharp, high-contrast images with true-to-life color reproduction.
Waterproof, Fog-Proof & Extreme Environment Ready
The PHY35 is fully nitrogen-filled and O-ring sealed, preventing internal fogging and moisture intrusion. It is designed to operate reliably in rain, snow, humidity, and rapid temperature changes.
Wide Field of View for Fast Target Tracking
With a 117 m/1000 m wide field of view, the PHY35 enables smooth tracking of moving subjects such as wildlife, vehicles, or personnel without constant repositioning.
Close Focus Capability for Detailed Observation
A minimum focus distance of 2 meters allows users to observe nearby objects with precision, from insects and plants to equipment and terrain features.
Comfortable Extended Use Design
Featuring 18.1 mm eye relief, adjustable twist-up eyecups, and a smooth central focus system, the PHY35 is optimized for extended viewing sessions, including eyeglass wearers.
Rugged Yet Lightweight Construction
The rubber-armored chassis provides impact resistance and secure grip while maintaining a balanced weight for field use.
| Parameter | Details |
| Magnification | 7x (based on 35 mm objective & 5.14 mm exit pupil) |
| Objective Lens Diameter | 35 mm |
| Exit Pupil Distance | 18.1 mm |
| Exit Pupil Diameter | 5.14 mm |
| Angular Field of View | 6.7° |
| Field of View (at 1000m) | 117 m |
| Close Focus Distance | 2 m |
| Interpupillary Distance Adjustment | 58–74 mm |
| Lens Coating | Fully Multi-Coated (FMC) – Green |
| Focus System | Central Focus |
| Prism Material | High-quality BAK4 |
| Diopter Adjustment Range | ±4 diopters |
| Waterproof / Fog-proof | Yes (Nitrogen-filled, O-ring sealed) |
| Operating Temperature | -20°C to 60°C (standard estimation) |
| Net Weight | 940 g |
| External Dimensions (W×H×L) | 168 × 65 × 135 mm |
Applications
The TFN PHY35 is suitable for professional-grade observation in defense, security, and tactical environments.
Border Surveillance: Monitor cross-border movement, terrain activity, and distant subjects with stable optical clarity.
Tactical Field Observation: Support reconnaissance teams in identifying terrain features, movement patterns, and potential threats.
Base Perimeter Security: Assist security personnel in monitoring facility perimeters and detecting unauthorized activity at long distances.
Coastal & Maritime Monitoring: Observe vessels, shoreline activity, and navigation routes under varying light and weather conditions.
Search & Rescue Operations: Locate missing persons or objects across wide outdoor areas with enhanced field visibility.
Frequently Asked Questions
The TFN PHY35 is designed for birdwatching, hunting, outdoor exploration, security surveillance, military observation, and field inspection tasks requiring clear long-distance vision.
Yes. The 35 mm large aperture and FMC multi-coated optics improve light transmission, making it effective during dawn, dusk, and cloudy conditions.
Yes. The PHY35 is nitrogen-filled and O-ring sealed with IPX7-level waterproof and fog-proof protection for all-weather use.
Yes. With 18.1mm eye relief and adjustable eyecups, eyeglass wearers can view the full field of vision without removing glasses.
The minimum focusing distance is 2 meters, allowing detailed observation of nearby objects and small subjects.