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-LERV050HC | 640x512 12μm Uncooled 50mm Motorized Lens IP Thermal Imaging Core | Ethernet/USB/CVBS/SDI

640 50mm Motorized Lens IP Thermal Module | Optimized for Perimeter Security

ZV-LERV050HC | The Perfect Balance of Field of View and Detection Distance with Intelligent Motorized Control.

One Lens, Two Missions

The 50mm motorised optic delivers unmatched depth-of-field flexibility—instantly switch focus from near-field equipment inspection to far-field perimeter surveillance. Outperforms fixed-focus athermalised lenses where mission requirements demand adaptability.

Sharper Input, Smarter Analytics

Algorithm-ready imagery with pixel-perfect focus significantly boosts AI intrusion detection accuracy. Eliminates the marginal blur of fixed lenses that degrades analytics performance—critical for automated threat recognition in critical infrastructure.

Key Specifications

Sensor: 640 × 512, 12μm uncooled VOx | NETD ≤35 mK @ F1.0
Lens: 50mm motorised | FOV 8.7° × 7.0° (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 Once, Adapt Instantly

Equally effective for industrial thermography, border monitoring, or facility protection—across Gulf deserts, European borders, Central Asian pipelines, 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	50 mm, Motorized Lens
Aperture Range	F1.0
FOV	8.7°×7.0° (Wide ~ Tele)
Focusing Range	50mm: 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: 5W
Dimensions (Unit: mm)	Φ68*155.9mm
Weight	392g

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)	277.8	69.4	34.7
Human (0.75m)	1041.7	260.4	130.2
Vehicle (2.0m)	2777.8	694.4	347.2
Vessel (6.0m)	8333.3	2083.3	1041.7

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.