M12 2.44mm Fisheye Lens

Name: M12 2.44mm Fisheye Lens
Brand: Shanghai SILK Optical Technology
SKU: PL-WA02425C-M12

The M12 2.44mm Fisheye Lens (Model PL-WA02425C-M12) is a compact ultra-wide optic engineered for space-constrained digital cameras. Designed for 1/2.9-inch sensors, it delivers a 162° diagonal, 118° horizontal, and 89° vertical field of view. Featuring a robust 5G+IR optical stack, an F2.5 fixed aperture, and a standard M12 mount, it combines a 17.05mm total track length with a 6.3mm image circle. It provides an exceptional balance of broad coverage and natural color reproduction for dashcams, security, IoT devices, and machine vision.

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Product Description

M12 2.44mm Fisheye Lens

PL-WA02425C-M12 from Shanghai SILK Optical Technology is a compact ultra-wide optic engineered for space-constrained digital cameras. Built around a 2.44mm effective focal length and a 162° field of view, it provides a very broad yet manageable coverage for automotive, security, and industrial applications.

M12 2.44mm Wide Angle Lens product photo

PL-WA02425C-M12 Specification

The following table details the core technical parameters, optical characteristics, and mechanical dimensions.

NO.	ITEM	CONTENT
1	TTL (Total Track Length)	17.05 ± 0.2 mm
2	EFL (Effective Focal Length)	2.44 ± 5% mm
3	F/NO (Aperture)	2.5 ± 5%
4	(M)BFL (Mechanical Back Focal Length)	3.69 ± 0.2 mm
5	CONSTRUCTION	5G + IR
6	MAX IMAGE CIRCLE	Φ 6.3 mm
7	For Sensor	1/2.9"
8	Field of View (Diagonal)	162°
9	Field of View (Horizontal)	118°
10	Field of View (Vertical)	89°
11	TV Distortion	-26.6%
12	Relative Illumination	55.0%
13	CRA (Chief Ray Angle)	< 18.15°
14	Mount (Interface)	M12

Mechanical Drawings

M12 2.44mm Wide Angle Lens Mechanical Drawing

Performance Advantages

Broad Coverage with Fewer Cameras

One wide optic can replace multiple narrow-angle cameras in room monitoring, vehicle cabin viewing, and shelf-level inspection, reducing BOM cost, cabling, compute load, and installation time.

Compact & Lightweight Construction

At 17.05mm total length, the lens supports slim camera modules, doorbell cameras, and embedded vision devices. Low mass reduces stress on the lens holder and helps maintain focus after vibration.

Even Corners & Clean Geometry

A 55.0% relative illumination rating and a -26.6% controlled barrel distortion give integrators a predictable base for ISP correction, holding straight lines and stable brightness.

Thermal & Batch Consistency

Five glass elements resist thermal drift better than all-plastic designs. Combined with ±0.2mm TTL and ±5% EFL tolerances, it ensures repeatable focus and image size across production runs.

Detailed Application Areas

Industry	Application Details
Automotive & Dashcams	Driver/cabin monitoring, recording adjacent lanes, and roadside details. Short TTL makes it practical for dashboard, mirror, and dome modules mounted close to the windshield.
Security & Monitoring	Corner-mounted room coverage, corridor monitoring. The IR-cut filter supports natural color by day, and the S-mount fisheye format fits bullet, dome, and turret housings.
Automotive Surround View	Rear-view, side-view, and mirror modules need an optic that tolerates vibration and temperature change. The broad coverage and all-glass stack suit exterior installations.
Action Cams & Robots	Captures wide scenes with a small optical block. On mobile robots and AGVs, the wide view supports obstacle detection and docking for 360° capture rigs.
Machine Vision & IoT	Conveyor monitoring, bin picking, and smart home devices. Supports calibration and dewarping for repeatable geometry in embedded and battery-powered devices.

ShangHai SILK Optical Technology CO., LTD supports OEM and ODM projects with flexible volume planning, sample evaluation, and production consistency. For inquiries, please contact our engineering team.