Why do I need a motorized focus lens?

If your application requires observing targets at different distances (e.g., a PTZ camera looking at a gate 50m away, then a fence 500m away), a motorized lens is essential to refocus for maximum sharpness.

Yes, the ZV-LERV series supports "One-Push Auto Focus" via the web interface or API, locking onto the sharpest image in milliseconds.

ZV-LERV035HC | 640x512 12μm Uncooled 35mm Motorized Lens IP Thermal Imaging Core | Perimeter Security & Robotics

640 35mm Motorized Lens IP Thermal Module | Optimized for Perimeter Monitoring

ZV-LERV035HC | Adaptable Focus | AI-Optimised Clarity | Multi-Role Ready

One System, Every Range

The 35mm motorised lens delivers true depth-of-field flexibility—instantly refocus from near-field equipment inspection to far-field perimeter monitoring. Surpasses fixed-focus athermalised designs where operational versatility is non-negotiable.

Precision Input for Smarter AI

Algorithm-ready imagery with consistent edge-to-edge sharpness maximises AI intrusion detection accuracy. Eliminates the subtle defocus of fixed lenses that compromises analytics reliability—critical for automated security in dynamic environments.

Key Specifications

Sensor: 640 × 512, 12μm uncooled VOx | NETD ≤35 mK @ F1.0
Lens: 35mm motorised | FOV 12.5° × 10° (wide to tele)
Output: 1080p @ 25/30fps | Network stream + CVBS | Multi-palette display
Interfaces: RS485, TTL 3.3V, audio I/O, alarm I/O (reserved)
Protocols: ONVIF, VISCA, PELCO-D/P compliant

Deploy Across Missions

Equally effective for industrial thermography, critical infrastructure monitoring, and wide-area surveillance—from Gulf energy sites to Eurasian borders and Southeast Asian ports.

Specifications

Camera
Detector type	Uncooled VOx Microbolometer
Effective Pixels	640 × 512
Pixel Pitch	12μm
Spectral Band	8 ～ 14μm
NETD	≤35 mK @F1.0, 300K
Lens
Focal Length	35 mm, Motorized Lens
Aperture Range	F1.0
FOV	12.5° × 10° (Wide ~ Tele)
Focusing Range	35mm: 3M—∞
Sealing	IP67(front of lens)
Network
Video Compression	H.265 / H.264
Protocols	ONVIF (PROFILE S, PROFILE G), SDK, TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, RTP, RTSP, RTCP, NTP, SMTP, SNMP, IPv6
Intelligent Detection	Tripwire, Intrusion, Loitering, etc.
Smart Intelligence (Optional)	Human/Vehicle/Ship classification，Fire detection
Image
Max. Resolution	30/25fps (1280 × 1024)
Image Settings	Saturation, Brightness, Contrast, Sharpness, etc.
Digital Zoom	4×
Pseudo Colours	16 Modes Available
Image Enhancement	Support
Image Filtering	Support
Dead Pixel Correction	Support
Noise Reduction	Support
Mirror	Support
Interface
Ethernet	100M Network Port
Analogue	CVBS
Digital	BT.656 (Optional)
Serial Port	1 channel TTL 3.3V, 1 channel RS485
Functional Interface	Alarm (1 in / 1 out), audio (1 in / 1 out), USB
Storage	Micro SD / SDHC / SDXC card (Up to 512G), NAS (NFS, SMB / CIFS supported)
General
Operating Conditions	-30℃ ~ 60℃; Humidity ≤ 95% (non-condensing)
Power Supply	12V DC ± 10%
Power Consumption	Max: 4.0W
Dimensions (Unit: mm)	Φ49.8*101.6mm
Weight	280g

Distance Analysis

Based on EN 62676-4:2015 | The calculation results are for reference only.

	Detection (MAX. Distance: m)	Recognition (MAX. Distance: m)	Identification (MAX. Distance: m)
UAVs (0.2m)	194.4	48.6	24.3
Human (0.75m)	729.2	182.3	91.1
Vehicle (2.0m)	1944.4	486.1	243.1
Vessel (6.0m)	5833.3	1458.3	729.2

FAQs

Q: Why do I need a motorized focus lens?
- A: If your application requires observing targets at different distances (e.g., a PTZ camera looking at a gate 50m away, then a fence 500m away), a motorized lens is essential to refocus for maximum sharpness.
Q: Can it auto-focus?
- A: Yes, the ZV-LERV series supports "One-Push Auto Focus" via the web interface or API, locking onto the sharpest image in milliseconds.