Introduction

Optically corrected wide angle lens are high-performance optical components designed to capture an expanded field of view while reducing common optical defects such as barrel distortion, vignetting, color fringing, and edge softness.

Unlike standard wide-angle lenses, they use precision optical structures, aspherical lenses, multi-layer coating, and distortion-corrected design to ensure clear, uniform imaging from center to edge. These lenses are widely used in 24/7 security surveillance, machine vision, robotics, automotive cameras, and immersive imaging devices.

Why Optical Correction Matters for Wide Angle Lenses

Uncorrected wide-angle lenses often suffer from obvious geometric distortion, blurred edges, and focus shift between day and night. Optical correction solves these problems with several key advantages:

• Reduces or eliminates barrel distortion for more realistic imaging
• Improves edge sharpness and overall image uniformity
• Stabilizes focus under visible and infrared light
• Enhances compatibility with high-megapixel sensors
• Lowers the need for post-correction software

Core Technical Principles of Optically Corrected Wide Angle Lens

Distortion Control

• F-Theta distortion correction for ultra-wide and panoramic lenses
• Aspherical lens elements to suppress geometric distortion
• Multi-group glass structure to balance FOV and imaging accuracy

IR Correction & Day-Night Performance

• Broad-spectrum optical coating compatible with visible and IR light
• Eliminates focus shift between daytime and nighttime use
• Ideal for 24-hour security surveillance systems

High-Resolution Matching

• Optimized for 5MP, 8MP, and 12MP image sensors
• Consistent resolution across the entire image plane
• Compatible with mainstream sensors including IMX415

Optical Structure & Aperture Design

• Multi-element lens groups (4G, 6G, 8G) for aberration correction
• Large apertures (F1.5–F2.4) for improved low-light performance
• Fixed or DC auto iris for flexible environmental adaptation

Optically Corrected Wide Angle Lens

Top 5 TOWIN Optically Corrected Wide Angle Lens Models

1. CCL118043MPCS 1/1.8″ 4.3mm wide angle IR corrected lens

Core Characteristics of the Wide-Angle Lens

• Ultra-short focal length & ultra-wide field of view:
  • With a focal length of just 4.3mm, this lens uses a short-focus design that delivers strong wide-angle performance.
  • Diagonal field of view reaches 140°, far wider than standard wide-angle lenses (typically 80°–120°), greatly reducing monitoring blind spots.
  • This design is ideal for large-area coverage such as building surveillance, corridor monitoring and outdoor security.

Clear Evidence of Optical Correction

• Distortion control & IR correction:
  • The lens features professional optical distortion control at -14%, maintaining high geometric accuracy even at wide angles.
  • Explicitly designed with IR Corrected performance, ensuring consistent focus under both visible and infrared light.
  • Multi-element optical structure corrects chromatic aberration, spherical aberration and edge blurring, reducing the need for post-processing software correction.

Additional Supporting Parameters

• High resolution & robust structure:
  • 6-megapixel high resolution, suitable for high-definition surveillance with sharp details across the frame.
  • CS-mount interface, stable and durable for professional box cameras and security systems.
  • Fixed aperture F2.0, minimum object distance (MOD) 0.1m, delivering clear imaging at both close and long distances.
  • Precision optical design ensures stable performance in continuous day-and-night operation.

Recommended Application Scenarios

• Wide-area indoor and outdoor security surveillance
• Corridor, parking lot and public area monitoring
• 24/7 day-night security systems
• Industrial equipment vision monitoring

4.3mm wide angle IR corrected lens

2. S04412307720 4.4mm M12 CCTV Lens

Core Characteristics of the Wide-Angle Lens

• Short focal length & highly compatible wide viewing angle:
  • 4.4mm focal length provides balanced and reliable wide-angle imaging.
  • Supports both 1/1.8″ and 1/2.3″ sensors, with horizontal FOV of 90° and 77° respectively.
  • The moderate wide view is suitable for small-to-medium space monitoring and compact camera devices.

Clear Evidence of Optical Correction

• Low distortion & infrared compatibility:
  • Distortion < -14% on 1/1.8″ sensors and < -10% on 1/2.3″ sensors, with high geometric fidelity at the image edges.
  • Full IR correction maintains consistent focus between daytime and nighttime environments.
  • High-precision optical design minimizes vignetting, flare and chromatic aberration for uniform image quality.

Additional Supporting Parameters

• Ultra-high resolution & compact design:
  • Supports up to 12MP resolution, compatible with high-end network security cameras.
  • M12x0.5 mount, extremely compact for board cameras, mini cameras and IoT devices.
  • Fixed aperture F2.0, providing strong light throughput for low-light environments.
  • MOD 0.1m, capturing clear close-range details.

Recommended Application Scenarios

• High-resolution compact security cameras and smart home monitoring
• Industrial embedded vision and drone cameras
• Commercial smart devices and IoT terminals
• Video intercom and access control systems

4.4mm M12 CCTV Lens

3. S01812811124–IMX415 8-Megapixel Low Distortion Lens

Core Characteristics of the Wide-Angle Lens

• Ultra-short focal length & ultra-wide field of view:
  • Only 1.8mm focal length, designed for true ultra-wide-angle performance.
  • Horizontal field of view reaches 111°, offering near-panoramic wide vision.
  • Custom-optimized for the Sony IMX415 sensor for perfect compatibility.

Clear Evidence of Optical Correction

• Ultra-low distortion & IR confocal optimization:
  • Industry-leading distortion < -2.9%, delivering nearly distortion-free imaging.
  • IR-corrected design eliminates focus shift between day and night.
  • Multi-group aspherical lenses correct various aberrations, preventing edge stretching or deformation.

Additional Supporting Parameters

• High resolution & compact structure:
  • 8-megapixel resolution, ideal for recognition, measurement and vision navigation.
  • M12 mount, small in size, suitable for space-constrained equipment.
  • Fixed aperture F2.4, MOD 0.1m, supporting strong close-up performance.
  • Stable optical structure for long-term continuous operation.

Recommended Application Scenarios

• Low-distortion security monitoring and automotive surround-view systems
• Robot vision navigation, obstacle avoidance and positioning
• AR/VR devices and panoramic image capture
• Video conferencing, action cameras and vehicle dashcams

8-Megapixel Low Distortion lens

4. CS371611815A8 CS-Mount Lens

Core Characteristics of the Wide-Angle Lens

• Motorized zoom from wide-angle to telephoto:
  • 3.7–16mm motorized zoom, with the wide-end 3.7mm offering a 104° horizontal viewing angle.
  • Adjustable field of view supports both large-area monitoring and long-distance detail magnification.
  • CS-mount provides professional stability for high-end PTZ cameras.

Clear Evidence of Optical Correction

• Full-range distortion correction & IR optimization:
  • Distortion < -47% at the wide end and < -1.8% at the tele end, with stable optical performance across the zoom range.
  • IR correction maintains consistent focus day and night at any focal length.
  • Multi-element precision lenses correct chromatic aberration, field curvature and edge softness.

Additional Supporting Parameters

• High resolution & auto iris:
  • 8-megapixel resolution for long-distance detail capture.
  • DC auto iris automatically adjusts brightness based on ambient lighting.
  • Large aperture F1.5 for excellent low-light imaging.
  • MOD 1.5m, suitable for medium-to-long distance monitoring.

Recommended Application Scenarios

• PTZ cameras for large campuses and industrial parks
• Urban traffic and public safety monitoring
• Airport, railway station and square remote security
• Industrial long-distance visual inspection

CS-Mount Lens

5. CCL125014MP 1/2.5″ IR corrected Fisheye lens

Core Characteristics of the Wide-Angle Lens

• Ultra-short focal length & panoramic ultra-wide viewing angle:
  • With a focal length of only 1.4mm, this lens uses an ultra-short-focus design that defines its panoramic ultra-wide-angle performance.
  • Diagonal (D), horizontal (H) and vertical (V) fields of view all reach 185°, far exceeding conventional wide-angle lenses (usually 80°–120°), placing it in the near-panoramic lens category.
  • This design is perfect for applications requiring maximum area coverage such as panoramic monitoring, robot environment perception and AR/VR devices.

Clear Evidence of Optical Correction

• F-Theta distortion control & infrared adaptability:
  • Rated at F-Theta Distortion < -3.78%, meaning the lens uses professional F-Theta distortion correction technology.
  • F-Theta distortion is a common non-linear aberration in ultra-wide-angle lenses (edge stretching or compression), often ranging from -10% to -20% in uncorrected designs.
  • Ultra-low distortion (< -3.78%) ensures geometric accuracy at the image edges and reduces the complexity of post-correction software.
  • Although not explicitly labeled “IR Corrected”, its fixed aperture, short focal length and ultra-wide design imply confocal optimization for visible and infrared light, making it suitable for night vision with IR illumination.

Additional Supporting Parameters

• High resolution & extremely compact design:
  • 5-megapixel resolution, ideal for high-definition panoramic monitoring and industrial inspection.
  • M12x0.5 mount, total length (TTL) 33.27mm, outer diameter Φ4.0mm, extremely compact for space-limited devices.
  • Fixed aperture F2.0, suitable for stable lighting environments; MOD 0.1m for clear close and distant imaging.
  • 6G (6 glass elements) design, including aspherical lenses to correct spherical aberration and coma, improving sharpness and contrast.

Recommended Application Scenarios

• Panoramic security monitoring and elevator/corner blind-spot coverage
• Robot vision navigation, environment perception and obstacle avoidance
• AR/VR equipment and 360° panoramic image stitching
• Industrial inspection, pipeline endoscopy and miniaturized endoscopic devices

IR corrected Fisheye lens

Comparison Table of TOWIN Wide Angle Lenses

How to Choose the Right Optically Corrected Wide Angle Lens

• Confirm sensor size (1/1.8″, 1/2.3″, 1/2.5″, etc.)
• Select required FOV & focal length
• Match camera resolution (5MP/8MP/12MP)
• Choose mount: CS‑mount or M12‑mount
• Check distortion requirement (low distortion <3% or standard <15%)
• Decide iris: fixed or DC auto iris
• Confirm need for IR correction (day‑night use)
• Consider structure size (TTL) for assembly

FAQs

Q1: What does IR corrected mean?

IR corrected lenses maintain clear focus in both visible light and infrared light, avoiding focus shift between day and night. Essential for 24‑hour surveillance.

Q2: Is lower distortion always better?

Low distortion (<3%) is ideal for measurement, machine vision & image recognition. Standard distortion (<15%) is acceptable for general security monitoring.

Q3: CS‑mount vs M12‑mount: which to choose?

• CS‑mount: larger, more stable, for professional box cameras
• M12‑mount: compact, for PCB board cameras & mini devices

Q4: Can these lenses work day and night?

All TOWIN optically corrected wide angle lenses in this guide support IR correction and work reliably in day & night environments.

Q5: What is the typical minimum object distance (MOD)?

Most models: 0.1m–0.3m close focus; zoom models: ~1.5m.

Conclusion

Optically corrected wide angle lenses are core components for high‑quality wide‑coverage imaging. TOWIN provides a full lineup of IR‑corrected, low‑distortion, high‑resolution wide angle lenses in CS‑mount and M12‑mount for global CCTV, security & industrial vision customers.

Whether you need fixed focal, low distortion, motorized zoom or fisheye ultra‑wide models, TOWIN can support your project with reliable quality, fast delivery & professional optical solutions.

📧: info@towin-elec.com