Low Distortion Lens – M720014001060

M720014001060 is Low distortion 5-megapixel CCTV lens with 20.8mm focal length, 12° diagonal field of view, F6.0 aperture, and 1/4″ M7X0.35 mount.

20.8mm M7 5MP Low Distortion Machine Vision Lens

This 20.8mm M7 low distortion machine vision lens is designed for compact high-resolution imaging systems that require a narrow field of view and controlled image geometry. With a 1/4″ image format, 5MP resolution, <0.9% TV distortion, 100mm M.O.D., and M7 × 0.35 mount, it provides a compact optical solution for precision inspection and localized industrial imaging.

M7 Low Distortion Lens Core Highlights

• 20.8mm Fixed Focal Length: Provides a narrow viewing angle for localized target imaging.
• 5MP Resolution: Delivers detailed image capture for precision inspection systems.
• <0.9% TV Distortion: Helps maintain controlled image geometry for visual measurement and inspection.
• Compact M7 × 0.35 Mount: Suitable for miniature camera modules and space-constrained optical assemblies.
• 100mm M.O.D.: Supports close-range imaging of small or localized targets.

20.8mm M7 Low Distortion Lens Applications

Core Application Scenes

This 20.8mm M7 5MP machine vision lens is designed for imaging systems where the camera needs to isolate a relatively small target area rather than capture a broad scene. Its 12° diagonal, 10° horizontal, and 7° vertical field of view provide a narrow viewing angle that is useful when a compact camera must focus on a specific inspection region.

The 100mm minimum object distance makes this configuration particularly useful for close-range imaging of small components positioned inside compact machinery. For example, the lens can be integrated into inspection modules that monitor connector pins, small mechanical components, electronic assemblies, printed features, or localized manufacturing details.

Its <0.9% TV distortion specification helps control geometric deformation, which is valuable when image processing involves object edges, alignment, dimensional comparison, or position detection. Combined with 5MP resolution, the lens provides a practical configuration for compact inspection equipment where detailed imaging is required but a conventional large machine vision lens would be difficult to integrate.

The M7 × 0.35 mount further reduces the mechanical footprint of the optical assembly. This makes the lens suitable for embedded cameras installed inside robotic end effectors, automated machinery, or compact inspection fixtures.

For engineers determining whether a narrow-angle lens provides sufficient target coverage, the FOV Calculator can be used to estimate the visible area based on the camera sensor and installation geometry.

Compatible Device List

• Compact Machine Vision Cameras: Suitable for 1/4″ 5MP camera modules used for localized inspection.
• Electronic Component Inspection Cameras: The narrow FOV helps isolate small components or specific regions on circuit assemblies.
• Robotic Inspection Modules: The compact M7 structure is suitable for vision systems installed within restricted mechanical spaces.
• Embedded Industrial Cameras: Designed for camera assemblies requiring a small optical footprint and fixed imaging geometry.
• Close-Range Inspection Fixtures: The 0.1m M.O.D. supports imaging of targets positioned close to the camera.
• OEM Vision Modules: Suitable for dedicated imaging devices where focal length, FOV, and mechanical dimensions are predetermined.

Designed for close-range precision inspection and localized machine vision imaging applications.

Optical Selection Considerations

The defining optical characteristic of this lens is its 20.8mm focal length combined with a narrow 12° diagonal FOV. Compared with short-focal-length M7 lenses, this configuration is intended to concentrate the image on a smaller area, making it more appropriate for localized inspection rather than wide-area monitoring.

The 5MP resolution and <0.9% TV distortion provide a useful combination for applications that require detailed image information while maintaining controlled geometry. Engineers working with dimensional inspection or image-based alignment can evaluate the distortion specification alongside the camera sensor and required measurement area.

The F6.0 aperture provides a relatively controlled optical configuration, while the 100mm M.O.D. allows the lens to be positioned close to the inspection target. During mechanical integration, the 27.38mm T.T.L. should also be considered when determining the available space within the camera housing.

For additional information about selecting industrial optics according to focal length, sensor size, and application requirements, the Lens Selection Guide provides useful background for optical configuration.

The complete M8/M7/M6/M5/M3.5 Small Mount Lenses category also provides other miniature optical configurations for compact imaging equipment.

Frequently Asked Questions

Q: What sensor size is this 20.8mm M7 lens designed for?
A: The lens is specified for a 1/4″ image format with a maximum image circle of Φ10 and supports 5MP resolution.

Q: What is the field of view of the 20.8mm lens?
A: On a 1/4″ image format, the specified field of view is 12° diagonal, 10° horizontal, and 7° vertical.

Q: Is this lens suitable for precision machine vision?
A: Yes. The 5MP resolution, narrow FOV, <0.9% TV distortion, and 100mm M.O.D. make it suitable for localized precision inspection and compact machine vision applications.

Q: Is this a wide-angle lens?
A: No. Featuring a 12° diagonal field of view, this lens targets narrow‑angle imaging instead of wide‑area coverage.

Q: What is the minimum object distance of this lens?
A: Its rated M.O.D. reaches 0.1 m (100 mm), so the lens supports relatively close‑range inspection tasks.

Q: What mount does this lens use?
A: It adopts an M7 × 0.35 mount. This mount fits compact embedded cameras and miniature industrial imaging modules.

Q: Does this lens have low distortion?
A: Yes. Its specified TV distortion is below -0.9%, helping control geometric deformation in the captured image.

Q: Does this lens include an IRCF?
A: No. The specification states Without IRCF. If IR filtering is required, an appropriate filter configuration should be considered separately within the camera system.

Related Resources

When selecting a narrow-angle machine vision lens, sensor size and required target coverage should be evaluated together with focal length and working distance. The Sensor Guide provides information about sensor formats and lens compatibility.

For basic optical concepts including focal length, field of view, and image formation, engineers can refer to the Lens Basics.

If geometric accuracy is important to the application, the Distortion Guide provides additional information about lens distortion and its influence on machine vision imaging.

For customized requirements involving focal length, image format, mount, optical performance, or mechanical dimensions, Contact Towin to discuss the required optical configuration.

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