Low Distortion Lens – CCL175020F

CCL175020F is 2mm low distortion lens with IR cut filter, F2.8 aperture M7X0.35 mount wide-angle lens, 1/7.5″ VGA resolution CCTV lens.

2mm M7 Low Distortion Miniature Lens

This 2mm M7 low distortion miniature lens is designed for compact camera modules that require accurate image reproduction within a very small optical package. Featuring <1% TV distortion, VGA resolution, a 48° horizontal field of view, and an ultra-short 5.75mm TTL, it is well suited to miniature embedded cameras, compact monitoring modules, sensing devices, and space-constrained imaging systems.

M7 Low Distortion Lens Highlights at a Glance

• <1% TV distortion provides significantly more accurate image geometry than conventional wide-angle miniature lenses.
• 2mm focal length delivers a 48° horizontal FOV for compact imaging applications requiring moderate scene coverage.
• Ultra-short 5.75mm TTL supports highly space-constrained camera module designs.
• M7×0.35 mount provides a compact mechanical interface for miniature camera assemblies.
• IR cut filter helps maintain appropriate visible-light image characteristics in compatible imaging systems.
• F2.8 fixed aperture provides a compact and straightforward optical configuration.

M7 Low Distortion Lens Applications

Core Application Scenes

This lens is particularly useful when a miniature camera needs better geometric accuracy without increasing the overall optical package size.

The combination of <1% distortion, 2mm focal length, 48° horizontal FOV, and only 5.75mm TTL makes the lens suitable for applications where conventional miniature wide-angle lenses may introduce excessive image deformation.

Typical application scenarios include:

• Compact embedded camera modules
• Miniature inspection cameras
• Small electronic imaging devices
• IoT sensing cameras
• Compact monitoring modules
• Barcode and code-reading modules
• Embedded visual sensing systems
• Space-constrained OEM camera assemblies
• Short-range observation systems

The low-distortion optical design is particularly useful when straight lines, object proportions, and relative positions need to remain visually accurate.

Designed for compact embedded imaging applications where low distortion and extremely short optical length are critical.

For additional miniature lens options with M7 and other small mechanical interfaces, explore Towin’s M8/M7/M6/M5/M3.5 Small Mount Lenses.

Compatible Device List

The M7×0.35 mount and compact 5.75mm TTL make this lens suitable for integration into:

• M7-compatible camera modules
• Miniature embedded cameras
• Compact IoT imaging devices
• Small monitoring cameras
• Embedded sensing equipment
• OEM camera modules
• Compact electronic vision systems
• Space-limited imaging assemblies

Because the lens uses a fixed aperture, manual focus, and fixed focal length, the optical configuration is relatively simple to integrate into dedicated camera modules.

For guidance on matching a lens with the appropriate sensor, see the Sensor Guide.

Low Distortion Performance for Compact Imaging

One of the key advantages of this lens is its TV distortion of less than -1%.

Compared with miniature lenses designed primarily for extremely wide coverage, the lower distortion specification helps preserve the shape and relative geometry of objects in the captured image. This can be valuable when the camera is used for visual inspection, code reading, object recognition, or other applications where excessive barrel distortion can affect image interpretation.

The 48° horizontal FOV also provides a useful balance between scene coverage and geometric control. It is considerably narrower than an ultra-wide miniature lens, but this allows the optical design to prioritize image geometry.

When selecting a low-distortion lens, engineers should evaluate the relationship between sensor size, focal length, FOV, working distance, and distortion rather than selecting a lens based on focal length alone.

Towin’s Lens Selection Guide provides additional information for comparing these optical parameters.

Ultra-Compact Mechanical Design

With a 5.75mm total track length, this lens is designed for camera assemblies where available optical space is extremely limited.

The M7×0.35 mount provides a compact mechanical connection, while the 4E optical construction keeps the lens suitable for miniature camera applications. This combination can help OEM designers integrate imaging functionality into small housings and electronic devices without requiring a long optical barrel.

The actual mechanical integration should be evaluated together with the camera housing, sensor position, mounting tolerance, and required focus range.

Frequently Asked Questions

Q: What type of lens is the 2mm M7 lens?
A: It is a fixed focal, low distortion miniature lens with an M7×0.35 mount. It provides a 48° horizontal field of view and less than 1% TV distortion.

Q: What makes this lens a low distortion lens?
A: The specified TV distortion is less than -1%, which is substantially lower than the distortion typically associated with very wide-angle miniature lenses.

Q: What sensor format is this lens designed for?
A: The specified image format is 1/7.5″. Compatibility should be confirmed against the exact camera sensor and module used in the final application.

Q: Is the lens suitable for compact camera modules?
A: Yes. The M7×0.35 mount and 5.75mm TTL make it particularly suitable for compact and space-constrained camera module designs.

Q: What is the field of view of the 2mm lens?
A: The field of view is 60° diagonal, 48° horizontal, and 29° vertical on the specified 1/7.5″ image format.

Q: Does this lens have an IR correction design?
A: The specification lists an IR cut component. An IR cut filter should not be interpreted as an IR-corrected optical design, so this lens should not be classified as an IR Corrected Lens based on the current specification.

Q: Is the aperture adjustable?
A: No. The lens has a fixed F2.8 aperture.

Q: Can the focus be adjusted?
A: Yes. The lens uses manual focus, allowing the focus position to be adjusted during camera module integration.

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