Low Distortion Lens – M902514006824F

M902514006824F is Low distortion Wide-angle 5-Megapixel CCTV lens with Built-In IR Filter, 1/4″ 2.5mm 89° F2.4 M9xP0.35 mount, for security surveillance.

2.5mm 5MP M9 Low Distortion Wide Angle Industrial Lens

This 2.5mm 5MP M9 wide angle industrial lens delivers an 89° diagonal field of view on the OV5640 sensor while maintaining TV distortion below 1%. Its compact 10 × 10mm holder, M9 × P0.35 mount, fixed F2.4 aperture, and IRCF optical construction make it well suited for space-constrained embedded vision, close-range inspection, and compact intelligent camera modules.

M9 Low Distortion Lens Core Highlights

• 2.5mm Wide Angle: Covers a broad scene from a compact camera position.
• 5MP Resolution: Provides detailed imaging for embedded vision applications.
• <1% Distortion: Helps preserve accurate image geometry across the viewing area.
• Compact 10 × 10mm Holder: Designed for space-constrained camera assemblies.
• F2.4 + IRCF: Combines a relatively bright aperture with an IR-cut optical configuration.

2.5mm M9 Low Distortion Lens Applications

Core Application Scenes

This 2.5mm M9 wide angle lens is designed for compact cameras that need to capture a relatively broad scene without using a fisheye optical design. Its 68° horizontal and 53° vertical FOV on the OV5640 sensor provide useful coverage for applications where the camera has limited installation space but still needs to observe multiple objects within a nearby scene.

The combination of 5MP resolution and <1% TV distortion makes the lens particularly suitable for embedded inspection systems where wide-area coverage and image geometry need to be balanced. Instead of simply maximizing FOV, this lens provides controlled wide-angle imaging for applications such as equipment monitoring, compact inspection modules, smart devices, and embedded AI cameras.

Its 10 × 10mm holder and 9.95mm TTL are also important for mechanical integration. The compact optical assembly can be incorporated into camera housings where conventional industrial lenses would occupy too much space. The 2.2mm B.F.L. should be considered during sensor and mechanical design to ensure correct optical positioning.

Designed for compact wide-angle embedded vision and close-range industrial imaging applications.

Compatible Device List

• Embedded Vision Cameras: Suitable for compact camera modules using 1/4″ image sensors such as the specified OV5640 configuration.
• Compact AI Vision Devices: The 5MP resolution and wide FOV support object detection and scene monitoring in embedded AI systems.
• Close-Range Inspection Cameras: The short 2.5mm focal length provides broad coverage when the camera is installed close to the inspection area.
• Smart Equipment Monitoring Modules: Useful for monitoring machine interiors, equipment panels, access areas, and compact operating environments.
• Robotics & Embedded Vision Modules: The small holder size allows integration into robotic components and other space-limited visual sensing systems.
• OEM Camera Assemblies: The M9 × P0.35 mount and compact 10 × 10mm holder provide a practical platform for customized camera module development.

For engineers evaluating the relationship between sensor format, focal length, and field of view, the Sensor Guide provides useful technical reference material. The FOV Calculator can also help estimate the required lens specifications for a particular installation distance and target area.

Optical Performance & Integration Considerations

The 2.5mm focal length gives this lens a substantially wider viewing angle than longer focal length miniature lenses. With the OV5640 sensor, it provides 89° diagonal, 68° horizontal, and 53° vertical FOV, making it suitable when a camera must cover a relatively large nearby area.

At the same time, the specified TV distortion below 1% distinguishes this lens from strongly distorted fisheye optics. This controlled distortion can be beneficial for applications involving object positioning, edge detection, visual inspection, and other computer vision tasks where image geometry matters.

The lens uses a 1G5P + IRCF optical structure. The integrated IR-cut filter configuration supports visible-light camera applications where unwanted infrared wavelengths need to be controlled. Engineers should also consider the 2.2mm B.F.L. and 9.95mm T.T.L. when positioning the sensor and designing the camera housing.

For applications where image geometry is important, the Distortion Guide explains how optical distortion can affect machine vision imaging. Engineers selecting between different focal lengths can also use the Focal Length Calculator to compare suitable focal length options.

Frequently Asked Questions

Q: What sensor is this 2.5mm lens designed for?
A: The lens is specified for a 1/4″ image format, with FOV data provided specifically for the OV5640 sensor.

Q: What is the field of view of this 2.5mm lens?
A: With the OV5640 sensor, the lens provides an 89° diagonal, 68° horizontal, and 53° vertical field of view.

Q: Is this lens a fisheye lens?
A: No. Although the 2.5mm focal length provides a wide field of view, its specified TV distortion is below 1%, so it is better classified as a low-distortion wide angle lens rather than a fisheye lens.

Q: Is the 2.5mm M9 lens suitable for machine vision?
A: Yes. Its 5MP resolution, <1% distortion, wide FOV, and compact mechanical design make it suitable for selected embedded machine vision and close-range inspection applications.

Q: What is the advantage of the 10 × 10mm holder?
A: The compact holder allows the lens to be integrated into small camera housings and embedded vision modules where installation space is limited.

Q: What does M9 × P0.35 mean?
A: M9 × P0.35 refers to the mechanical mounting thread, with an approximately 9mm nominal thread diameter and a 0.35mm thread pitch.

Q: Does this lens have a fixed aperture?
A: Yes. The lens uses a fixed F2.4 aperture and fixed iris configuration, providing a consistent optical setup for its intended camera module.

Q: What does IRCF mean in the lens structure?
A: IRCF refers to an infrared-cut filter configuration. It is used to reduce unwanted infrared wavelengths reaching the image sensor in visible-light imaging systems.

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