Can I shoot long range without an LRF?

Yes. With the high-resolution 640 sensor, you can clearly see target details to judge distance visually.

What is the benefit of 35mm over 50mm?

The 35mm lens gives you a 40% wider field of view compared to the 50mm model. This is critical when game is moving fast or when you are hunting in wooded areas under 200 meters.

ZV-TSR351| 640x512 35mm Thermal Rifle Scope | Wide FOV & High Res

Zanvision ZV-TSR351 | High-Res 640 Thermal Scope - The Perfect Balance

Wide Vision, Extreme Detail. The Ultimate FOV for Rapid Target Acquisition.

ZV-TSR351: 640x512 Professional Thermal Sight with 35mm Lens

Key Performance Highlights:

Elite Field of View: 12.5° Wide FOV Combined with 640 Resolution for Unmatched Scanning.
Detail in Every Pixel: 12μm VOx Sensor Technology for Crisper, Smoother Imaging.
Agile & Lightweight: Optimized for Maneuverability in Dense Brush or Moving Hunts.

The ZV-TSR351 strikes the perfect balance between field of view and resolution. Its 35mm lens delivers a massive 12.5° Field of View, allowing you to sweep the landscape like a radar system. Meanwhile, the 640×512 high pixel density ensures edge-to-edge clarity, so even targets at the periphery remain sharply defined.

Stripped of unnecessary bulk, this scope is designed for the lightest, most rapid scanning experience. Whether tracking fast-moving game through dense brush or patrolling complex terrain, the TSR351 provides the decisive tactical edge you need to succeed.

Specifications

Infrared module
Image Sensor	UFPA (VOx)
Resolution	640×512
Pixel pitch	12µm
Frame rate	50Hz
NETD	≤35mk
Spectral range	8-14µm
Optical parameter
Focal length / Aperture	35mm; F1.0
Field of view	12.5°×10.0°
Focus Mode	Manual
Eye relief / Exit pupil	50mm / 6mm
Diopter	+5D to -5D
Detection Range	2.6km (vehicle)
Image Display
Screen	AMOLED, 0.39 inch
Resolution	1024×768
Eye relief	50mm
Exit pupil	6mm
Brightness Adjustment	Support
Color Palette	White Hot/Black Hot/Red Hot/Fusion/Golden Hot etc.
Digital Zoom	1×; 2×; 4×
Power supply
Battery type & number	2 Lithium batteries
Battery parameter	18650（3400mah）
External power supply	DC 5V (USB Type-C)
Power Consumption	≤2.2W（25℃）
Battery Operating time	≥10h （25℃）
Peripheral
Electronic comp ass	Support
Attitude sensor	Support
WIFI / Bluetooth	Support; 2.4G
GPS	Support (Optional)
Storage	Built-in EMMC (32GB)
General
Interface	USB (Type-C)
Protection level	IP67
Operating temperature	-30°C to +60°C
Max. Recoil	1200g/0.4ms
Weight（without battery）	≤600g
Dimension	245×60×90（mm）

Scenario-Based Content

Why 35mm + 640? | The Sweet Spot of Thermal Imaging

Pairing a 640x512 sensor with a 35mm lens creates the ultimate hunting optic. You get the wide 12.5° Field of View needed to track moving sounders of hogs, PLUS enough pixel density to positively identify targets out to 800+ meters.

Built for the Stalk | Streamlined for the Brush

Without the bulk of an external rangefinder, the ZV-TSR351 offers a classic, streamlined profile. It won't snag on branches as you move through dense cover, making it the ideal companion for active stalking.

FAQS

Q: Can I shoot long range without an LRF?
- A: Yes. With the high-resolution 640 sensor, you can clearly see target details to judge distance visually.
Q: What is the benefit of 35mm over 50mm?
- A: The 35mm lens gives you a 40% wider field of view compared to the 50mm model. This is critical when game is moving fast or when you are hunting in wooded areas under 200 meters.

Zanvision ZV-TSR351 | High-Res 640 Thermal Scope - The Perfect Balance

ZV-TSR351: 640x512 Professional Thermal Sight with 35mm Lens

Elite Field of View: 12.5° Wide FOV Combined with 640 Resolution for Unmatched Scanning.

Detail in Every Pixel: 12μm VOx Sensor Technology for Crisper, Smoother Imaging.

Agile & Lightweight: Optimized for Maneuverability in Dense Brush or Moving Hunts.

Specifications

Scenario-Based Content

FAQS