Wide Angle Lens – S04012708526

S04012708526 is 4mm Premium Wide Angle Lens Manufacturer, 3-megapixel resolution lens, F2.6 aperture High Magnification M12/S-mount lens, CCTV lens.

4mm 3MP M12 Wide Angle Lens

This 4mm 3MP M12 wide angle lens is designed for compact camera systems that require broad scene coverage across different sensor formats. Compatible with both 1/2.7″ and 1/3″ image formats, the lens provides flexible integration for a range of embedded cameras, industrial monitoring systems, and compact vision devices.

On a 1/2.7″ sensor, the lens delivers a 107° diagonal, 85° horizontal, and 64° vertical field of view. When paired with a 1/3″ sensor, the FOV becomes 94° diagonal, 75° horizontal, and 56° vertical. This allows system designers to select the appropriate sensor according to the required image coverage.

With a 4mm focal length, 3MP resolution, 0.2m minimum object distance, and M12×0.5 mount, the lens provides a practical combination of wide-angle coverage and compact mechanical integration. It is suitable for smart security, embedded vision, robotics, industrial monitoring, and other applications where camera size and viewing area both matter.

Explore more compact optical solutions in TOWIN’s M12 Lenses range.

M12 Wide Angle Lens Core Highlights

• Dual Sensor Compatibility — Supports both 1/2.7″ and 1/3″ image formats for greater camera-platform flexibility.
• Wide-Angle 4mm Focal Length — Provides up to 107° diagonal FOV on a 1/2.7″ sensor for broad scene coverage.
• 3MP Resolution — Suitable for general monitoring, detection, embedded vision, and industrial imaging applications.
• 0.2m Minimum Object Distance — Enables close-range imaging where the camera must observe nearby objects or equipment.
• Compact M12×0.5 Mount — Designed for small camera modules and space-constrained optical assemblies.

M12 Wide Angle Lens Applications

Core Application Scenes

The combination of a 4mm focal length, wide field of view, dual sensor compatibility, and compact M12 interface makes this lens suitable for applications where a relatively large viewing area needs to be captured from a compact camera position.

Typical applications include:

• Smart security cameras
• Indoor surveillance systems
• Industrial equipment monitoring
• Embedded machine vision
• Robotics vision systems
• Compact inspection cameras
• Presence and occupancy detection
• Object monitoring
• Smart home and IoT cameras
• Edge AI vision devices
• Short-range industrial imaging

Designed for compact wide-angle vision applications, this lens provides flexible optical coverage for camera platforms using either 1/2.7″ or 1/3″ sensors.

The 0.2m minimum object distance also makes the lens useful when the camera needs to observe equipment, objects, or people from a relatively short distance.

For application-specific development, the lens can be considered for TOWIN’s Machine Vision, Robotics Vision, and Smart Security solutions.

Compatible Device Types

This M12 lens can be integrated into compatible:

• 1/2.7″ CMOS camera modules
• 1/3″ CMOS camera modules
• 3MP camera systems
• Compact IP camera modules
• Smart security camera modules
• Industrial monitoring cameras
• Embedded vision cameras
• Robotics cameras
• IoT imaging devices
• Compact machine vision equipment
• Edge AI camera systems

The support for two sensor formats gives camera manufacturers additional flexibility when developing different hardware configurations around the same basic optical platform.

Field of View Across Different Sensors

One of the main advantages of this lens is its ability to work with both 1/2.7″ and 1/3″ sensors.

With a 1/2.7″ sensor, the specified FOV is:

• 107° diagonal
• 85° horizontal
• 64° vertical

With a 1/3″ sensor, the specified FOV is:

• 94° diagonal
• 75° horizontal
• 56° vertical

The smaller 1/3″ sensor produces a narrower field of view because it uses a smaller active imaging area. Therefore, camera designers should always use the FOV corresponding to the actual sensor selected for the final product.

The distortion specification also varies by sensor format, with <-37% for 1/2.7″ and <-29% for 1/3″.

For more information about sensor and lens compatibility, refer to TOWIN’s Sensor Guide.

Wide-Angle Imaging and Distortion

The 4mm focal length provides broad coverage while remaining less extreme than ultra-short focal length designs. This makes the lens suitable for applications where a wide scene is important but the system does not necessarily require an extreme fisheye-style viewing angle.

The specified distortion is <-37% on 1/2.7″ and <-29% on 1/3″. These values should be considered as part of the lens’s wide-angle optical design.

For general surveillance, presence detection, robotics perception, equipment monitoring, and embedded vision, such distortion may be acceptable depending on the image-processing requirements.

However, applications involving precision measurement, dimensional inspection, or geometrically accurate machine vision should evaluate distortion requirements separately and consider a dedicated low-distortion optical design.

TOWIN’s Distortion Guide provides additional information for engineers comparing wide-angle and distortion-controlled lens designs.

Close-Range Imaging Capability

The 0.2m minimum object distance allows this lens to work with relatively close subjects. This is useful in compact installations where the camera cannot be positioned several meters away from the target.

Potential examples include equipment monitoring, robotic perception, indoor security, machine status observation, and short-range object detection.

The 6.3mm BFL should be considered during mechanical integration to ensure the lens and camera sensor are positioned correctly within the final camera housing.

Frequently Asked Questions

Q: What sensor formats are supported by this 4mm M12 lens?

A: The lens is specified for both 1/2.7″ and 1/3″ image formats, allowing it to be used with compatible CMOS sensors of either size.

Q: What is the FOV on a 1/2.7″ sensor?

A: The lens provides 107° diagonal, 85° horizontal, and 64° vertical FOV when used with a 1/2.7″ sensor.

Q: What is the FOV on a 1/3″ sensor?

A: On a 1/3″ sensor, the specified FOV is 94° diagonal, 75° horizontal, and 56° vertical.

Q: Why does the FOV change between 1/2.7″ and 1/3″ sensors?

A: The FOV changes because different sensor formats have different active imaging areas. A smaller sensor captures a smaller portion of the lens’s image circle, resulting in a narrower field of view.

Q: Is this a low-distortion M12 lens?

A: The lens is designed as a wide-angle optical solution rather than a precision low-distortion lens. Its specified distortion is below -37% for 1/2.7″ and below -29% for 1/3″. Applications requiring highly accurate geometry should use a lens specifically optimized for low distortion.

Q: What is the minimum object distance of this lens?

A: The minimum object distance is 0.2m, making the lens suitable for relatively close-range imaging applications.

Q: Is this lens suitable for machine vision?

A: Yes. The compact M12×0.5 mount, 3MP resolution, wide FOV, and close focusing capability make it suitable for selected embedded machine vision and industrial monitoring applications where extreme geometric accuracy is not the primary requirement.

Q: Can this lens be used in OEM camera projects?

A: TOWIN supports OEM/ODM optical development for customized imaging systems. Project requirements such as sensor format, focal length, FOV, distortion, mechanical dimensions, working distance, and environmental conditions can be evaluated during optical design.

Related Optical Resources

When selecting a wide-angle M12 lens, engineers should evaluate sensor format, focal length, field of view, distortion, resolution, and mechanical compatibility together.

TOWIN’s Lens Selection Guide provides additional guidance for selecting an appropriate lens for a particular camera system.

For basic optical concepts, visit Lens Basics.

If you need to determine a suitable focal length based on the sensor dimensions and target FOV, the Focal Length Calculator can be used for preliminary optical selection.

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