

5MP Φ14 motorized zoom lens with 3.3–11mm focal length, 115°–34° H.F.O.V., F1.6 aperture, DC auto iris, step-motor focus and zoom, and IR-corrected optical performance for flexible CCTV imaging.
D14331112516A5M-1 is 5 Megapixel IR corrected CCTV lens, 1/2.5″ 3.3-11mm High-Resolution Wide Angle lens, F1.6 Low F-number Φ14 Mount lens, DC Auto iris.
| IMAGE FORMAT | 1/2.5″ |
| FOCAL LENGTH | 3.3-11mm |
| H F.O.V. | 115°~34° |
| RESOLUTION | 5 MegaPixel |
| DISTORTION | -59%~-3% |
| APERTURE | F1.6 |
| MOUNT | Φ14 |
| IRIS | DC Auto |
| FOCUS | Step Motor |
| ZOOM | Step Motor |
| M.O.D. | 0.5m |
| F.B.F.L. | 13.45mm |
| IR | Corrected |
For systems requiring a different combination of focal length, field of view, sensor coverage, or mechanical configuration, Towin also provides additional options through its Other Special Mount Φ14/Φ16 Lens category.
This 5MP 3.3-11mm Φ14 motorized zoom CCTV lens combines an ultra-wide 115° horizontal field of view with motorized zoom, motorized focus, DC auto iris, and IR correction. Designed for professional surveillance cameras and compact imaging systems, it provides flexible wide-area coverage while maintaining 5-megapixel imaging performance across different focal lengths.
This 3.3–11mm Φ14 zoom CCTV lens is designed for imaging systems that need both very wide coverage and motorized focal-length adjustment. At 3.3 mm, the 115° horizontal field of view can cover a large area with a single camera, while extending to 11 mm provides a significantly narrower 34° view for closer observation of selected areas.
The combination of motorized zoom, motorized focus, DC auto iris, and IR correction makes this lens particularly suitable for professional CCTV camera modules installed in environments where operators need to adjust framing remotely. The wide-angle end is useful for entrances, open indoor spaces, corridors, retail areas, and perimeter monitoring, while the longer focal length provides greater flexibility when a specific area needs closer observation.
For applications involving different sensor formats and lens configurations, the Lens Selection Guide can help engineers evaluate focal length, sensor compatibility, field of view, and other optical requirements before selecting a lens.
For broader surveillance system integration, this lens can also be evaluated alongside Towin’s Smart Security solutions, particularly where wide-area coverage and remotely adjustable framing are required.
Because this lens provides a very wide 115° horizontal field of view together with substantial barrel/fisheye distortion at the short focal-length end, it is intended for applications where wide-area coverage is more important than rectilinear geometry. If accurate dimensional measurement or low-distortion imaging is required, engineers should instead evaluate a suitable low-distortion optical design through the Distortion Guide.
For estimating coverage at different working distances and focal lengths, Towin’s FOV Calculator can also be used during the lens selection process.
Designed for motorized wide-area surveillance, day/night CCTV monitoring, and compact camera systems requiring flexible zoom coverage.
Q: What type of lens is the 3.3–11mm Φ14 lens?
A: It is a motorized zoom lens with wide-angle/fisheye characteristics, IR correction, DC auto iris, and a Φ14 mounting configuration. Its 3.3–11mm focal range provides flexible coverage for surveillance imaging.
Q: What field of view does this lens provide?
A: The horizontal field of view ranges from 115° at 3.3mm to 34° at 11mm, allowing the camera to switch between very wide-area coverage and a narrower viewing angle.
Q: Is this a fixed focal lens?
A: No. It is a zoom lens. The focal length can be adjusted electronically from 3.3mm to 11mm using the integrated step motor.
Q: What does IR corrected mean for this lens?
A: IR correction is designed to reduce focus shifts between visible and near-infrared wavelengths, which is useful for cameras operating in changing lighting conditions or with infrared illumination.
Q: Does this lens support automatic exposure control?
A: Yes. The lens uses a DC auto iris, allowing the aperture to respond to changing illumination and helping the camera maintain appropriate image exposure.
Q: What type of camera is this lens suitable for?
A: It is suitable for compact 1/2.5″ 5MP CCTV and surveillance camera systems, particularly applications requiring motorized zoom, wide-area coverage, and remote focus adjustment.
Q: What is the minimum object distance of this lens?
A: The specified M.O.D. is 0.5m, meaning the minimum object distance is approximately 0.5 meters under the specified optical configuration.
Q: Can the lens be customized for a specific camera module?
A: Towin can evaluate optical and mechanical requirements such as sensor format, mounting configuration, focal range, field of view, IR performance, and housing dimensions. For project-specific requirements, engineers can contact Towin through the Contact page.
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