M12 lenses are compact, threaded lenses designed for small cameras and optical systems. The name “M12” refers to the size of the lens mount, specifically the M12 threaded screw. These lenses serve a wide range of applications, ranging from security cameras to automotive systems, and their compact size renders them ideal for scenarios with limited space.
Key Features of M12 Lenses
- Small Form Factor: These lenses fit in tight spaces and still maintain high-quality optical performance.
- Variety of Lens Types: M12 lenses come in multiple configurations, each optimized for specific applications such as surveillance, automotive, and robotics.
- Customization: Many M12 lenses can be customized for specific needs, from field of view to resolution.
- Cost-Efficient: Despite their compact size, M12 lenses often provide excellent performance at a lower cost compared to larger, more complex lenses.
Types of M12 Lenses and Their Applications
Description:
- Low distortion lenses are engineered to reduce optical imperfections, such as barrel distortion, which is common in wide-angle lenses. These lenses frequently find application in machine vision, optical sensing, and security cameras, where clarity and image accuracy hold great importance.
Key Parameters:
- Distortion Rate: Typically less than 1%, allowing for minimal geometric distortion.
- Resolution: High resolution to ensure sharpness and clarity in captured images.
- Field of View: Available in various field of views, typically ranging from 45° to 90°.
Performance and Advantages:
- Accurate Image Capture: Low distortion ensures that the image remains true to real-world dimensions, which is critical in industrial applications like barcode reading or quality control.
- Wide Application: These lenses are perfect for machine vision, facial recognition systems, and any application requiring precise imaging.

Low distortion lens 12-Megapixel M12 F2.2 CCTV lens
Description:
- Automotive M12 lens are designed for use in driver assistance systems, autonomous vehicles, and cameras that provide views of the surroundings of a vehicle. These lenses usually offer a wider field of view and excel in dynamic, high-speed environments.
Key Parameters:
- Field of View (FOV): Often a wide-angle, ranging from 90° to 180°, to cover a broad area around the vehicle.
- Resolution: High resolution (usually 2-5 megapixels) to capture detailed views.
- Light Sensitivity: Designed to work in low-light conditions, often incorporating infrared capabilities.
Performance and Advantages:
- Enhanced Safety: The wide FOV and high resolution allow vehicles to capture detailed images of their surroundings, aiding in parking, collision avoidance, and autonomous driving.
- Durability: Automotive M12 lenses can withstand harsh conditions, including temperature extremes and vibrations.

IP67 6mm Waterproof Automotive Wide-Angle Lenses
Description:
- M12 CCTV lenses are specifically made for surveillance cameras, offering clear imaging and a wide field of view. These lenses optimize for monitoring large areas, making them ideal for use in public spaces, homes, and commercial properties.
Key Parameters:
- Field of View: Ranges from 60° to 120°, providing a broad coverage area.
- Resolution: Typically 1-3 megapixels for security cameras.
- Aperture: Some CCTV lenses have adjustable apertures (e.g., f/1.4 to f/2.8) for better light sensitivity.
Performance and Advantages:
- Clear and Sharp Imaging: M12 CCTV lenses deliver high-resolution images for accurate monitoring, even in low light.
- Versatility: They can be used for a wide range of surveillance needs, from general security to facial recognition or object tracking.
- Durability: Many CCTV lenses are resistant to dust and moisture, allowing them to function reliably in various environmental conditions.

M12 CCTV lens 3-Megapixel IR corrected
Description:
- Fisheye M12 lenses provide an ultra-wide, panoramic view, often up to 180° or more. These lenses are ideal for applications that require capturing an entire scene in one shot, such as surveillance systems, panoramic photography, and virtual reality (VR) systems.
Key Parameters:
- Field of View: 180° or greater, capturing a hemispherical image.
- Resolution: Typically lower than other M12 lens types (e.g., 1-2 megapixels), as the emphasis is on wide coverage rather than detail.
- Distortion: Fisheye lenses naturally produce significant distortion, giving them their characteristic “bubble” effect.
Performance and Advantages:
- Wide-Angle Imaging: Fisheye lenses are perfect for creating 360-degree images or videos.
- Enhanced Surveillance: Their broad coverage area makes them ideal for monitoring large spaces like parking lots, stadiums, or public squares.
- Immersive Experiences: Fisheye lenses are commonly used in VR and panoramic photography to provide immersive experiences.

Fisheye lens 1/3″ Φ3 210° HD M12 mount lens
Description:
- Pinhole M12 lenses are characterized by their simple, minimalistic design, often with no glass elements, and their tiny aperture, which creates a sharp but low-light image. They are commonly used in applications where compact size and minimalism are key, such as in small security cameras or niche industrial applications.
Key Parameters:
- Field of View: Typically narrow, around 30° to 60°.
- Resolution: Lower than other M12 lenses (typically around 1 megapixel).
- Light Sensitivity: Less sensitive to low light compared to other lens types.
Performance and Advantages:
- Simplicity and Cost-Effectiveness: Pinhole lenses are inexpensive and simple, making them ideal for budget-conscious applications.
- Compact Size: Their minimal design allows them to fit in extremely small devices or cameras.
- Low Distortion: Pinhole lenses have minimal optical distortion, providing sharp, if low-resolution, images.

Pinhole-lens-10mm-IR-corrected
TOWIN: A Trusted Name in M12 Lenses
When it comes to high-quality M12 lenses, one brand that stands out is TOWIN. With years of experience in the lens industry, TOWIN offers a range of M12 lenses that cater to the specific needs of various applications, including low distortion, automotive, CCTV, fisheye, and pinhole lenses. What sets TOWIN apart is its commitment to innovation and quality, ensuring that each lens is engineered to deliver excellent optical performance, durability, and reliability.
TOWIN lenses are particularly known for their superior resolution and customization options, providing businesses with the flexibility to choose lenses that fit their unique specifications. Whether you need a high-resolution lens for security cameras or a durable automotive lens for a self-driving car, TOWIN has solutions designed to meet your needs.
Basic Knowledge About M12 Lenses
- M12 Mounting: The “M12” refers to the threaded screw mount size (12mm diameter). This standardized mount allows easy integration of lenses into various optical systems.
- Field of View (FOV): M12 lenses come with varying FOV, from narrow to wide, depending on the application. A wider FOV is ideal for surveillance, while a narrower FOV may be used for automotive or machine vision systems.
- Resolution: Higher resolution lenses offer better image clarity but may also require more processing power and storage space.
FAQs
What is the primary advantage of M12 lenses over larger lenses?
M12 lenses are compact, making them ideal for small optical systems, where space is limited but performance is still required.
Can M12 lenses be used for night surveillance?
Yes, many M12 lenses, especially those for CCTV and automotive applications, are designed with low-light capabilities or infrared sensitivity.
Are TOWIN M12 lenses customizable?
Yes, TOWIN offers customization options, allowing customers to tailor lenses to meet specific requirements, such as field of view or resolution.
How do I choose the right M12 lens for my application?
Consider factors like field of view, resolution, light sensitivity, and environmental durability. Each application—whether surveillance, automotive, or robotics—has unique lens requirements.
What is the lifespan of an M12 lens?
M12 lenses are built for durability, with many designed to withstand harsh environments. The lifespan depends on the specific use case and environmental conditions, but TOWIN lenses are known for their longevity.
Can I use M12 lenses for high-resolution imaging?
Yes, some M12 lenses, particularly those designed for CCTV and automotive use, offer high resolution for clear imaging.

1/4″ 2.8mm M12 Wide-angle Car Lens
Conclusion
M12 lenses are a versatile and essential component in a wide range of optical systems, from security cameras to automotive technologies. Understanding the types, features, and applications of M12 lenses can help businesses and individuals select the best lens for their needs. TOWIN M12 lenses stand out in the market for their superior performance, durability, and customization options, making them a reliable choice for a variety of industries.