C-Mount Lens – C2001056M20

C2001056M20 is 20mm C-Mount lens, manual iris, High-Resolution low distortion lens, 12-Megapixel Industrial Lens Suitable for security Surveillance.

1-Inch 20mm 12MP C-Mount Industrial Machine Vision Lens

This 1-inch 20mm 12MP C-Mount industrial lens is designed for high-resolution machine vision and factory automation systems that require a large 1-inch image format, 20mm focal length, and controlled optical distortion. With a 43.5° diagonal field of view, manual iris, focus, and zoom adjustment, it provides flexible optical configuration for inspection and measurement applications.

Product Core Highlights

• 12MP high-resolution imaging for detailed industrial inspection and vision analysis.
• 1-inch image format supports cameras with larger sensors and provides a broad image area.
• 20mm focal length delivers a moderate field of view for controlled inspection distances.
• C-Mount interface enables compatibility with a wide range of industrial cameras.
• Manual iris, focus, and zoom adjustment allows optical parameters to be configured according to different inspection conditions.

C-Mount Industrial Machine Vision Lens Applications

Precision Machine Vision Inspection

The 20mm focal length and 12MP resolution make this lens suitable for machine vision systems inspecting components, assemblies, surfaces, and manufactured parts where image detail is important. The 1-inch image format allows it to be paired with larger-format industrial cameras without limiting the usable image circle.

For systems requiring high-resolution inspection, this lens can be integrated with TOWIN’s range of C-Mount Lenses and selected according to sensor format, focal length, and application requirements.

Factory Automation & FA Systems

In automated production lines, the lens can be used for dimensional inspection, component positioning, defect detection, barcode reading, and presence/absence inspection. Manual optical adjustment is useful during system installation when the working distance and lighting conditions need to be optimized.

Designed for factory automation and industrial inspection applications, this lens is particularly suitable for fixed-camera systems where the optical configuration can be adjusted during machine setup.

Electronic Component Inspection

The 12MP optical performance can support detailed imaging of electronic components, connectors, PCBs, and other small or medium-sized industrial parts. The 20mm focal length provides a balanced field of view for inspection stations where the camera is positioned at a controlled working distance.

For selecting the appropriate sensor and lens combination, refer to TOWIN’s Sensor Guide and Lens Selection Guide.

Robotics Vision

The compact C-Mount optical configuration also fits robotic inspection systems. These systems mount cameras on robotic arms or integrate cameras into automated workstations. Operators tune the optical setup after camera installation using manual focus and iris.

For robotic inspection projects, see TOWIN’s Robotics Vision Solutions for additional application information.

Compatible Devices

This 20mm C-Mount lens can be considered for use with:

• 1-inch industrial cameras
• 12MP machine vision cameras
• C-Mount industrial cameras
• Factory automation vision systems
• Robotic inspection cameras
• PCB and electronic component inspection systems
• Automated optical inspection equipment
• Industrial defect detection systems
• Dimensional measurement and positioning systems

When integrating the lens with a camera, confirm the camera’s sensor format, C-Mount interface, required field of view, working distance, and available back focal distance before final selection.

Frequently Asked Questions

Q: What sensor size is this 20mm lens designed for?
A: This lens is specified for a 1-inch image format, making it suitable for industrial cameras using a 1-inch sensor.

Q: What is the field of view of the 20mm C-Mount lens?
A: On a 1-inch sensor, the specified field of view is 43.5° diagonal, 35.5° horizontal, and 27° vertical.

Q: Is this a high-resolution machine vision lens?
A: Yes. The lens is specified with a 12MP resolution, making it suitable for high-resolution industrial imaging and inspection systems.

Q: What does the <2% TV distortion specification mean?
A: TV distortion below 2% indicates that the lens maintains controlled geometric distortion across the image. The actual suitability for measurement applications should be evaluated together with the required inspection accuracy and calibration method. TOWIN’s Distortion Guide provides additional information about lens distortion.

Q: Can the aperture be adjusted manually?
A: Yes. The lens uses a manual iris with an aperture range of F5.6–22, allowing the user to adjust light transmission and depth of field during system setup.

Q: Can the focus be adjusted manually?
A: Yes. Users adjust focus manually. The lens has a 0.1 m minimum object distance, so operators can configure it for relatively close inspection setups.

Q: What camera interface does this lens use?
A: The lens uses a C-Mount, making it suitable for many industrial and machine vision cameras equipped with a C-Mount interface.

Q: How should I select this lens for a machine vision system?
A: Consider the camera sensor size, required field of view, working distance, resolution, mounting interface, and inspection target. TOWIN’s Focal Length Calculator can also help estimate the focal length required for a particular imaging setup.

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