2.88mm wide angle lens

1. Product Brief

This compact M12 wide angle lens is professionally engineered for 1/3” image sensors, delivering ultra-wide diagonal 140° field of view for comprehensive scene capture. Manufactured by ShangHai SLIK Optical Technology CO., LTD, this fixed focal CCTV lens adopts mature optical layout to balance wide coverage and controllable TV distortion, making it a reliable IR corrected board lens for mass-market surveillance cameras. With F2.5 large aperture design, this low light camera lens supports clear imaging under dim indoor environments, while its 55.0% relative illumination effectively suppresses corner vignetting. Its CRA less than 22.8° guarantees excellent compatibility with mainstream CMOS sensors. The compact TTL 15.0mm structure simplifies camera module assembly. As a versatile industrial vision lens and security board lens, this wide FOV optical lens fits miniature IP cameras, home monitoring devices and embedded vision hardware. ShangHai SLIK Optical Technology CO., LTD strictly controls optical tolerance to ensure consistent performance of every compact board camera lens for global buyers.

2. Detailed Product Description

 Parameter

- Focal length 2.88mm ±5% paired with F2.5 aperture: this M12 wide angle lens offers balanced wide view and favorable low-light sensitivity, ideal for compact surveillance modules.

- Image circle Φ6.22mm, optimized for 1/3” sensor: diagonal FOV reaches 140°, horizontal 97.8°, vertical 76°, providing ultra-broad coverage without multiple cameras.

- TV distortion -20.2%: typical wide-angle distortion level, suitable for general monitoring where full scene coverage takes priority over strict straight-line preservation.

- Relative illumination 55.0%: outperforms many ordinary board lenses, reducing dark corners to maintain uniform brightness across the frame.

- CRA <22.8°: well-matched to standard CMOS sensors, avoiding corner blurriness and color shading.

- Mechanical dimension: TTL 15.0±0.2mm, M12 standard mount; easy integration for mini camera assemblies.

 Performance Advantages

- Excellent low-light performance: As a fixed focal CCTV lens with F2.5 aperture, it collects more light than smaller-aperture alternatives to enhance night imaging without extra infrared fill light.

- Stable IR correction: This IR corrected board lens realizes consistent focusing across visible and infrared spectrum, supporting day-night switching surveillance.

- Uniform edge brightness: High relative illumination minimizes vignetting, a key advantage of this security board lens for wide-angle scene recording.

- Sensor-friendly optical design: Controlled CRA ensures the wide FOV optical lens cooperates seamlessly with common 1/3” sensors, avoiding corner resolution drop.

- Compact mechanical design: Short total length fits slim mini IP cameras; standardized M12 interface simplifies mass production replacement.

- Strict tolerance control: ShangHai SLIK Optical Technology CO., LTD implements precise optical testing to stabilize yield for this industrial vision lens.

 Application Field

- Indoor security surveillance: The M12 wide angle lens is widely used for home cameras, office monitoring, retail shop and corridor observation, covering large indoor spaces with single device.

- Embedded consumer cameras: This compact board camera lens fits smart doorbells, household panoramic monitoring and small-size wireless camera modules.

- Industrial embedded vision: As a reliable industrial vision lens, it works for equipment monitoring, machine auxiliary viewing and short-range area inspection.

- Vehicle auxiliary monitoring: Suitable for cabin monitoring and short-distance wide-view on-board cameras, leveraging ultra-wide FOV to capture surrounding space.

- Low-light short-range monitoring: The low light camera lens performs well in dim environments such as storage rooms, stairwells and underground corridors.