Description
Optimize your high-end surveillance and traffic monitoring systems with our professional 1/1.8″ 3MP 3.6-11mm varifocal CS-mount CCTV lens. Purpose-built for large-format image sensors, this advanced ITS lens delivers a stunningly wide 113° to 46° horizontal field of view with exceptional edge-to-edge sharpness. Integrating a fast F1.5 large aperture, precision DC auto iris, and specialized IR corrected lens technology, it guarantees bright, blur-free 3 Megapixel imaging under both blinding daytime sunlight and near-total nighttime darkness.
Key Product Highlights
- Large 1/1.8″ Format & 113° Wide Field: Maximizes light intake and captures expansive multi-lane road views or sprawling commercial areas at 3.6mm, shrinking surveillance blind spots significantly.
- Ultra-Bright F1.5 Aperture for Low Light: Draws in massive amounts of light compared to standard lenses, ensuring clean, noise-free 3MP color video in dim dawn, dusk, or streetlit environments.
- Perfect Infrared Focus Alignment: Advanced IR corrected lens coatings prevent nighttime focus shift, keeping your daytime color images and nighttime infrared footage perfectly synchronized and sharp.
- Responsive DC Auto Iris Mechanism: Protects sensors from overexposure by automatically adjusting to rapid light changes, making it ideal for continuous, unmonitored outdoor applications.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/1.8″ |
| Focal Length | 3.6-11mm |
| Horizontal F.O.V. | 113° ~ 46° |
| Resolution | 3 Megapixel |
| Aperture | F1.5 |
| Mount Type | CS Mount |
| Iris Type | DC Auto Iris |
| Focus Control | Manual |
| Zoom Control | Manual |
| M.O.D. (Min. Object Distance) | 0.3m |
| Optical Coating | IR Corrected |
This product is certified by RoHS and ISO9001 quality management system, supports third-party testing, and complies with EU and domestic security equipment access standards, ensuring reliable quality and full compliance.
Applications & Compatible Equipment
This elite varifocal day&night lens is engineered specifically for large-sensor systems deployed in demanding environments. It serves as an excellent ITS lens for intelligent traffic monitoring, electronic toll collection (ETC) gates, urban intersections, and highway speed traps where a 1/1.8″ sensor is required to grab wide license plate coverage across multiple lanes. Furthermore, its ultra-bright F1.5 aperture makes it indispensable for critical infrastructure perimeters, large seaport docks, and airport aprons where low-light performance determines the success of automated facial and object recognition analytics.
Compatible Equipment List:
- Sensors: Optimized for large 1/1.8″ sensors and backward compatible with standard 1/2.7″, 1/2.8″, and 1/3″ CMOS/CCD sensors.
- Cameras: Perfect for native CS-mount IP box cameras, ANPR (Automatic Number Plate Recognition) camera modules, and analog HD box systems.
- Brands: Fully compatible with premium box cameras from Hikvision, Dahua, Axis Communications, Hanwha Vision, and Bosch Security.
- Housings: Fits into standard weatherproof street-monitoring camera enclosures and heavy-duty industrial security housings.
“Designed for high-end intelligent traffic systems and low-light wide-angle surveillance applications.”
Frequently Asked Questions
- Q: Why is a 1/1.8″ image format important for this lens?
- A: A 1/1.8″ format means the lens is designed to cover larger imaging sensors. Large sensors capture significantly more light and offer a wider field of view compared to standard 1/3″ or 1/2.7″ sensors, dramatically boosting low-light performance.
- Q: Can this lens be used for license plate recognition (ANPR/LPR)?
- A: Yes. This is a highly reliable ITS lens that provides the 3MP optical clarity and the F1.5 light sensitivity needed to capture clear license plates on moving vehicles during both day and night.
- Q: How does the manual zoom lens setup benefit installers?
- A: The 3.6-11mm manual variable range allows installers to adjust the horizontal field of view between 113° and 46° on-site. This flexibility allows one lens model to fit multiple distinct viewing requirements on a project site.
- Q: What is the advantage of an F1.5 aperture over an F1.4 or F1.6 lens?
- A: An F1.5 aperture strikes an ideal balance for large 1/1.8″ optics, providing a very large opening that floods the sensor with light while maintaining a reliable depth of field across the entire 3.6-11mm zoom range.
- Q: Will this lens experience focus shift when switching to night mode?
- A: No. As an IR corrected lens, it features premium multi-coatings that align visible and infrared light wavelengths onto the exact same focal plane, preventing any nighttime blurring.
- Q: Do I need an extra bracket or adapter ring to mount this lens?
- A: This lens belongs to native CS-mount lenses. If your camera body features a standard CS mount, it screws directly onto the camera without any additional adapters or bracket modifications.
