Low Distortion Lens – M902812509022F

M902812509022F is 5-Megapixel Low distortion Wide-angle CCTV lens with Built-In IR Filter, 100° 1/2.5″ M9X0.35 lens F2.2 security surveillance.

2.8mm 5MP M9 Low Distortion Industrial Lens

This 2.8mm 5MP M9 low distortion industrial lens delivers a 100° diagonal field of view with 90° horizontal and 70° vertical coverage while maintaining TV distortion below 1.4%. Its F2.2 aperture, M9 × 0.35 mount, 0.2m minimum object distance, and IRCF construction make it suitable for compact embedded vision systems requiring broad coverage from a small optical assembly.

M9 Low Distortion Lens Core Highlights

• 100° Wide FOV: Provides broad scene coverage from a compact 2.8mm focal length.
• 5MP Resolution: Delivers detailed imaging for embedded vision applications.
• <1.4% Distortion: Maintains controlled geometric distortion for wide-angle imaging.
• F2.2 Aperture: Supports efficient light transmission in compact camera designs.
• 4G2P + IRCF: Combines a multi-element optical structure with infrared-cut filtering.

2.8mm M9 Low Distortion Lens Applications

Core Application Scenes

This 2.8mm M9 low distortion lens is designed for compact camera systems that need to capture a broad area from a relatively short installation distance. Its 100° diagonal and 90° horizontal FOV make it particularly useful when a single embedded camera needs to monitor a wide nearby scene without using a fisheye optical design.

The 1/2.5″ image format and 5MP resolution provide a useful combination for compact visual sensing systems where both sensor coverage and image detail matter. The lens can be integrated into equipment-monitoring cameras, embedded inspection modules, smart devices, and compact AI vision systems where a conventional longer focal length would capture too narrow a scene.

The 0.2m M.O.D. also makes this lens suitable for relatively close-range imaging. It can be positioned near equipment panels, components, work areas, or objects that need to remain within a broad viewing zone. The 1.2mm M.B.F.L. should be considered during mechanical design to ensure appropriate sensor positioning and optical alignment.

Designed for broad-area close-range imaging in compact embedded vision and industrial camera systems.

Compatible Device List

• Embedded Vision Cameras: Suitable for 1/2.5″ sensor-based camera modules requiring broad scene coverage.
• Compact Machine Vision Cameras: The 5MP resolution and controlled distortion support selected inspection and visual recognition tasks.
• AI Vision Modules: The wide FOV allows embedded cameras to observe larger nearby areas for object detection and scene analysis.
• Equipment Monitoring Cameras: Useful for monitoring machine interiors, work areas, equipment panels, and other confined environments.
• Robotics Vision Modules: The compact M9 mounting configuration can be integrated into robotic sensing units where a broad viewing area is required.
• OEM Camera Assemblies: The M9 × 0.35 mount and fixed optical configuration provide a practical basis for customized embedded camera designs.

When matching this lens with a specific camera sensor, the Sensor Guide provides useful information about sensor format and lens compatibility. For projects where the required coverage area is already known, the FOV Calculator can help estimate the appropriate optical configuration.

Wide-Angle Performance & Optical Integration

The 2.8mm focal length produces a 100° diagonal field of view, giving the lens substantially broader coverage than standard focal lengths. With 90° horizontal and 70° vertical FOV, the lens is particularly useful when horizontal scene coverage is a priority.

Unlike strongly distorted fisheye optics, this lens specifies TV distortion below 1.4%. This controlled distortion helps maintain more predictable image geometry, which can be useful for object recognition, positioning, edge detection, and other embedded computer vision tasks.

The F2.2 aperture provides a relatively bright fixed optical configuration, while the fixed iris simplifies integration into compact camera modules. The 4G2P + IRCF structure is designed for a compact optical assembly with infrared-cut filtering for compatible visible-light imaging systems.

The 1.2mm M.B.F.L. is an important mechanical specification during camera development. Sensor placement, housing clearance, lens holder design, and optical alignment should all be considered before finalizing the camera assembly.

For engineers comparing distortion characteristics between different wide-angle optics, the Distortion Guide provides additional technical reference. The Lens Selection Guide can also help evaluate focal length, FOV, sensor size, and application requirements together.

Frequently Asked Questions

Q: What sensor size is this 2.8mm M9 lens designed for?
A: The lens is specified for a 1/2.5″ image format and provides a 100° diagonal field of view.

Q: What is the field of view of this 2.8mm lens?
A: The lens provides 100° diagonal, 90° horizontal, and 70° vertical FOV.

Q: Is this a fisheye lens?
A: No. Although the lens provides a 100° diagonal field of view, its specified TV distortion is below 1.4%. It is better classified as a controlled wide-angle lens rather than a fisheye lens.

Q: Is this lens suitable for machine vision applications?
A: Yes. Its 5MP resolution, broad FOV, controlled distortion, and compact M9 mounting configuration make it suitable for selected embedded machine vision and inspection applications.

Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.2m, making it suitable for relatively close-range imaging when the target distance and required field of view are properly matched.

Q: What is the advantage of the F2.2 aperture?
A: The F2.2 aperture provides a relatively bright fixed optical configuration, which can be beneficial for compact cameras operating under varying illumination conditions.

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

Q: What does 4G2P + IRCF mean?
A: 4G2P describes the optical element construction using four glass elements and two polymer elements, while IRCF indicates an infrared-cut filter configuration.

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