Wide Angle Lens – CCL129021MPIRC

CCL129021MPIRC 2.1mm 4MP fixed focal M12 ultra wide angle lens with 161° FOV

2.1mm 4MP M12 Ultra Wide Angle Lens

This 2.1mm M12 ultra wide angle lens is designed for compact camera modules that need to capture an exceptionally broad scene from a limited installation position. Featuring a 161° diagonal FOV, 141° horizontal FOV, 4MP resolution, and F2.1 aperture, this fixed focal lens provides wide-area imaging for smart security, IoT cameras, door-entry systems, and other compact vision devices.

M12 Ultra Wide Angle Lens Core Highlights

• 161° Ultra-Wide Field of View — The 2.1 mm lens yields 161°‑diagonal, 141°‑horizontal FOV for wide‑scene, low‑blind‑spot imaging.
• 4MP Resolution for Detailed Wide-Area Imaging — Compared with lower-resolution wide angle lenses, the 4MP optical design provides additional image detail for monitoring, recognition, and embedded vision applications where broad coverage and usable image information are both required.
• Compact M12 × 0.5 Interface — The M12 mount enables ultra‑wide optics integration in space‑limited compact cameras.
• F2.1 Aperture with Fixed Iris — The F2.1 aperture balances light‑gathering and compact optics; its fixed iris simplifies dedicated camera use.
• Short Back Focal Length for Compact Integration — With a 3.72mm B.F.L. and 3.37mm M.B.F.L., the lens is suitable for camera designs where the distance between the optical system and sensor needs to remain compact.

M12 Ultra Wide Angle Lens Applications

This 2.1mm M12 ultra wide angle lens is primarily suited to compact imaging equipment where maximum scene coverage is more important than long-distance narrow-angle imaging. Its combination of 161° diagonal FOV, 141° horizontal FOV, 4MP resolution, short focal length, and compact M12 mounting makes it particularly useful for embedded cameras installed close to the monitored area.

• Smart Video Doorbells — The 141° horizontal FOV helps capture visitors together with a broad area around the entrance, making the lens suitable for compact doorbell camera modules where minimizing blind spots is important.
• Indoor Smart Security Cameras — The ultra-wide viewing angle can cover rooms, entrances, corridors, and other relatively close-range areas with fewer cameras, helping simplify compact monitoring equipment.
• Home IoT Vision Devices — The M12 × 0.5 mount and short optical configuration make the lens suitable for smart home camera modules and connected devices where both small dimensions and broad scene coverage are required.
• Door-Entry and Access Monitoring — The wide FOV is useful for cameras positioned close to people or access points, allowing the system to capture a larger area without requiring a long focal length.
• Compact Embedded Camera Systems — The short B.F.L. and M.B.F.L. support integration into space-constrained camera assemblies used in smart devices, monitoring equipment, and embedded vision products.

Compatible equipment: This lens is designed for compatible 1/2.9″ CMOS camera modules and M12 × 0.5 camera assemblies, including smart doorbell cameras, compact IP camera modules, indoor security cameras, IoT vision devices, and embedded monitoring systems. For different sensor sizes, focal lengths, or field-of-view requirements, customers can contact TOWIN for customized optical solutions.

For related compact lens options, explore TOWIN’s M12 Lenses, for application-specific solutions, see Smart Security.

Frequently Asked Questions

• Q: What type of lens is this?
  A: This is a 2.1mm M12 fixed focal ultra wide angle lens designed for 1/2.9″ camera sensors. It provides a 161° diagonal FOV and 141° horizontal FOV for broad-area imaging.
• Q: What is the field of view of this M12 lens?
  A: The lens provides a 161° diagonal FOV, 141° horizontal FOV, and 82° vertical FOV, making it suitable for applications that require very broad scene coverage.
• Q: What sensor size is compatible with this lens?
  A: The specified image format is 1/2.9″, so the lens is designed for compatible 1/2.9″ CMOS image sensors and camera modules.
• Q: Is this a fixed focal lens?
  A: Yes. The focal length is fixed at 2.1mm and the iris is fixed, making the lens suitable for dedicated camera systems with a predefined field of view.
• Q: What is the advantage of the 2.1mm focal length?
  A: A 2.1mm focal length provides an extremely wide viewing angle, allowing cameras installed close to the monitored area to capture more of the surrounding scene.
• Q: Is this lens suitable for security cameras?
  A: Yes. Its ultra-wide FOV and 4MP resolution make it suitable for compact security cameras, smart doorbells, indoor monitoring systems, and other wide-area camera applications.
• Q: What does the 3.72mm B.F.L. mean for camera integration?
  A: The 3.72mm back focal length indicates the optical distance from the rear reference point of the lens to the image plane, which is an important parameter when matching the lens with a camera module and sensor position.
• Q: Can TOWIN customize this M12 wide angle lens?
  A: TOWIN can support customized optical designs based on requirements such as sensor format, focal length, field of view, mounting interface, and application environment. Customers can contact TOWIN to discuss their project requirements.

Related Resources

Choosing an ultra-wide angle lens requires matching the focal length with the camera sensor and required coverage area. TOWIN’s Lens Selection Guide provides practical guidance for comparing lens specifications and selecting the appropriate optical configuration.

For understanding how sensor dimensions affect the actual viewing angle, refer to the Sensor Guide. You can also use the FOV Calculator to evaluate field-of-view requirements for different sensor and focal-length combinations.

Because this lens has a very wide field of view, optical distortion should also be considered during system design. TOWIN’s Distortion Guide explains how lens distortion affects imaging performance and optical selection.

If you need to determine the focal length required for a specific sensor, working distance, and field of view, use the Focal Length Calculator.

Explore additional products through TOWIN’s Products section or contact TOWIN for OEM/ODM lens requirements.

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