Fisheye Lens – S01512018520F

S01512018520F is 5-Megapixel F2.0 M12 Fisheye CCTV lens with Built-In IR Filter, 185° field of view, Φ4.7 diameter, for high-definition security surveillance.

1.5mm M12 185° Fisheye Lens for 5MP Machine Vision

This 1.5mm M12 fisheye lens provides an ultra-wide 185° field of view with 5MP imaging performance, making it suitable for systems that require exceptionally broad scene coverage from a compact camera module. With an F2.0 aperture, 0.3m minimum object distance, M12x0.5 mount, and 6G+IRCF optical structure, it is designed for embedded vision, machine vision, robotics, and wide-area imaging applications.

Product Core Highlights

• 185° ultra-wide FOV provides exceptionally broad scene coverage from a single compact camera position.
• 5MP resolution support provides detailed imaging for embedded and machine vision systems.
• 1.5mm fixed focal length is optimized for ultra-wide fisheye imaging applications.
• F2.0 aperture supports a relatively bright optical system for indoor and controlled low-light environments.
• M12x0.5 mount enables straightforward integration with compact camera modules.
• 6G+IRCF optical structure combines a compact multi-element optical design with an integrated IR cut filter.

1.5mm M12 185° Fisheye Lens Applications

Core Application Scenes

The defining characteristic of this lens is its 185° ultra-wide field of view combined with a 1.5mm focal length. This configuration is intended for imaging systems where maximizing the visible area is more important than maintaining a conventional rectilinear image geometry.

For machine vision, the lens can be used when a single camera needs to observe a very large area, such as equipment surroundings, workspaces, robotic operating zones, or large objects positioned close to the camera. The 5MP capability provides more image information than lower-resolution fisheye modules while retaining the broad coverage of the optical design.

In robotics vision, the 185° FOV can provide broad environmental visibility around a mobile or stationary robotic platform. This can be useful for navigation, workspace observation, obstacle awareness, and other vision tasks where a wide surrounding view is required.

For embedded wide-area imaging, the M12x0.5 interface and 20.7mm TTL make the lens suitable for integration into compact camera assemblies where available installation space is limited. The fixed iris also simplifies mechanical and electrical integration by eliminating the need for iris control.

The 0.3m M.O.D. makes this lens particularly relevant to close-to-medium-distance wide-area imaging rather than applications requiring extremely close focusing.

Because the specified distortion is < -99%, the lens should be treated as a dedicated fisheye optical system. If the application requires a geometrically corrected image, software-based fisheye correction or dewarping should be considered during system design.

Compatible Devices

This lens can be integrated into or evaluated for use with:

• 5MP embedded camera modules
• M12-based industrial cameras
• Compact machine vision cameras
• Robotics vision modules
• Mobile robot vision systems
• Wide-area monitoring cameras
• Fisheye imaging modules
• Embedded AI vision devices
• Compact inspection systems

Explore more compatible optical configurations in the M12 Lens product range.

For similar ultra-wide optical designs, see the Fisheye Lens category.

When evaluating the relationship between sensor size, focal length, and field of view, the FOV Calculator can be used during lens selection.

For applications requiring broad visual coverage in automated inspection, see the Machine Vision solution; For robotic platforms and environmental perception, see the Robotics Vision solution.

For additional technical information about selecting an optical configuration, visit the Lens Selection Guide.

Designed for ultra-wide fisheye machine vision and embedded vision applications.

Frequently Asked Questions

Q: What is the field of view of this 1.5mm M12 lens?
A: The lens provides an ultra-wide 185° field of view in diagonal, horizontal, and vertical directions according to the specified optical configuration.

Q: Is this lens a fisheye lens?
A: Yes. The 185° field of view and extremely high specified distortion of < -99% indicate a dedicated fisheye optical design.

Q: Is this a low distortion lens?
A: No. Boasting distortion below −99%, this lens targets extreme fisheye coverage instead of low‑distortion imaging. Designers should not classify it as a Low Distortion Lens.

Q: What is the resolution of this M12 fisheye lens?
A: The lens is specified for 5MP imaging, making it suitable for 5MP-class camera modules and embedded vision systems.

Q: What does the F2.0 aperture provide?
A: The F2.0 aperture provides a relatively bright optical configuration, which can be beneficial for maintaining image brightness in indoor and controlled low-light environments.

Q: What is the minimum object distance?
A: The lens features a 0.3 m M.O.D., so it targets close‑to‑medium‑distance wide‑area imaging instead of ultra‑close macro imaging.

Q: What does IRCF mean in the 6G+IRCF structure?
A: IRCF refers to an infrared cut filter. It should not be interpreted as IR correction. The filter is used to control infrared wavelengths reaching the image sensor.

Q: Does the 185° fisheye image require software correction?
A: Depending on the application, yes. The extremely wide fisheye projection introduces substantial geometric distortion. Designers can apply software dewarping when the final image requires a rectilinear appearance or accurate spatial geometry.

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