C-Mount Lens – C7501028M8

C7501028M8 is C-Mount 2/3″ 75mm lens, low-distortion lens for machine vision, manual iris, F2.8~16, high resolution 8-Megapixel Industrial Lens.

For help understanding the relationship between sensor size, focal length and imaging coverage, see the Sensor Guide and Lens Selection Guide.

75mm C-Mount 8MP Low Distortion Machine Vision Lens

This 75mm C-Mount machine vision lens is designed for 2/3″ image sensors and 8MP industrial cameras requiring precise, narrow-field imaging. With a 6.5° horizontal FOV, extremely low TV distortion below 0.02%, manual zoom and manual focus, it is well suited for high-precision FA lens and industrial inspection systems.

Product Core Highlights

• 75mm focal length for narrow-field, targeted industrial imaging.
• 8MP resolution for high-detail machine vision inspection.
• Ultra-low <0.02% TV distortion for accurate geometric imaging.
• Manual zoom and focus for flexible optical positioning.
• F2.8–16 aperture range for adaptable exposure and depth-of-field control.

The combination of high resolution and extremely low distortion makes this lens particularly useful when image geometry is important to the inspection process. Its C-Mount interface also allows straightforward integration with compatible industrial cameras and machine vision equipment.

C-Mount Low Distortion Lens Applications

Core Application Scenes

This 75mm low distortion industrial lens is designed for inspection environments where the camera needs to capture a relatively narrow target area with minimal geometric deformation. The 6.5° horizontal and 5.1° vertical FOV provide concentrated image coverage, making the lens suitable for inspecting individual components, assemblies and controlled production areas from a working distance.

In factory automation, the lens supports precision component inspection, dimensional verification, surface analysis, and positioning. The extremely low TV distortion of less than 0.02% helps maintain accurate representation of straight edges and geometric features, which is particularly valuable when image-based measurement or visual comparison is part of the inspection process.

The manual zoom configuration provides additional flexibility during optical setup, allowing system integrators to adjust the imaging field according to the target size and camera installation distance. Boasting a minimum object distance of 0.8 m, the lens supports close-range industrial inspection setups and eliminates the need for direct camera-to-target placement.

For systems where the required focal length or field of view needs to be established before installation, the Focal Length Calculator can assist with preliminary lens selection.

Designed for high-precision factory automation, dimensional inspection and low-distortion industrial imaging applications.

Compatible Device List

• 2/3″ Industrial Cameras: Designed for machine vision cameras using 2/3″ image sensors and compatible C-Mount interfaces.
• FA Inspection Equipment: Suitable for automated production lines requiring repeatable optical imaging for component inspection and verification.
• Machine Vision Systems: Can be integrated into fixed-position inspection stations for dimensional analysis, defect detection and component positioning.
• Industrial Measurement Systems: The <0.02% TV distortion specification supports applications where maintaining image geometry is important.
• Robotic Inspection Platforms: The narrow FOV can be used for targeted inspection of specific components or working zones within automated robotic systems.
• Production-Line Vision Systems: The manual aperture, zoom and focus controls provide flexibility during initial optical alignment and system commissioning.

For broader machine vision applications, see the Machine Vision Solutions page. For application-specific optical configurations or custom requirements, contact Towin Lens for technical assistance.

Frequently Asked Questions

Q: What sensor size is this 75mm C-Mount lens designed for?
A: This lens is designed for 2/3″ image sensors and supports up to 8MP resolution according to the supplied specifications.

Q: What is the field of view of the 75mm lens?
A: The horizontal FOV is 6.5°, while the vertical FOV is 5.1°. This narrow field of view is suitable for targeted imaging of relatively small inspection areas.

Q: Is this a fixed focal length lens?
A: No. The supplied specification lists Manual Zoom, so it should be treated as a zoom lens rather than a fixed focal length lens.

Q: How low is the distortion of this machine vision lens?
A: The specified TV distortion is less than 0.02%, providing very low geometric distortion for applications requiring accurate image representation.

Q: What is the aperture range?
A: The lens provides a manual aperture range of F2.8 to F16, allowing the optical system to be adjusted for different lighting and depth-of-field requirements.

Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.8m, making it suitable for controlled industrial inspection setups where the camera is positioned at a defined distance from the target.

Q: Can this lens be used for machine vision inspection?
A: Yes. Its 8MP resolution, narrow FOV, low distortion and C-Mount interface make it suitable for precision machine vision and factory automation applications.

Q: Does the lens support automatic focus or iris control?
A: No. Both the focus and iris are manual, giving system integrators direct control during optical alignment and machine vision system setup.

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