Description
Optimize your security network with our professional 3MP 4-12mm varifocal CS-mount CCTV lens. Engineered for large-format 1/2″ image sensors, this high-definition security lens offers an adaptable focal range and a wide 98° to 32° horizontal field of view. Equipped with advanced IR corrected lens technology and a fast F1.6 aperture, it ensures seamless day/night transitions without focus shift under infrared light, making it the premier choice for professional, high-clarity surveillance.
Key Product Highlights
- Flexible 4-12mm Varifocal Range: Smoothly transitions from a 98° wide-angle view for broad coverage to a 32° telephoto close-up for detailed tracking, adjusting on-site to eliminate blind spots.
- Pro-Grade 3MP HD Resolution: Crafted with premium multi-coated optical glass to support 3 Megapixel sensors, delivering sharper details and superior identification compared to standard lenses.
- Dynamic Auto Iris Technology: Automatically adjusts to shifting lighting conditions, protecting the sensor from daytime glare while ensuring peak contrast throughout the day.
- Zero-Shift IR Corrected Optics: Specialized varifocal day&night lens coatings ensure visible and infrared light focus on the exact same plane, guaranteeing sharp night vision without focus blur.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/2″ (Highly compatible with 1/2.7″, 1/2.8″, 1/3″, etc.) |
| Focal Length | 4-12mm |
| Horizontal F.O.V. | 98° ~ 32° |
| Resolution | 3 Megapixel |
| Aperture | F1.6 |
| Mount Type | CS Mount |
| Iris Type | Auto Iris |
| Focus Control | Manual |
| Zoom Control | Manual |
| M.O.D. (Min. Object Distance) | 0.3m |
| IR Corrected | Yes |
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 high-definition zoom lens is custom-designed for critical security environments where illumination changes constantly. It serves as an excellent choice for CCTV lens hardware deployed in outdoor parking lots, warehouse corridors, commercial building lobbies, and public avenues. The automatic iris ensures that the lens responds instantly to sudden sunlight or headlights, making it highly valuable for 24/7 boundary protection and monitoring vehicle choke points where both sweeping 98° wide-angle overviews and targeted zoom frames are necessary.
Compatible Equipment List:
- Sensors: Optimally fits large 1/2″ sensors and is fully compatible with standard 1/2.7″, 1/2.8″, and 1/3″ CMOS/CCD imaging modules.
- Security Cameras: Universally compatible with professional CS-mount box cameras, IP network cameras, and outdoor security housings.
- Mainstream Brands: Perfect fit for high-performance box camera systems from Hikvision, Dahua, Axis, Bosch, and Hanwha Vision.
- Iris Control: Supports standard Auto Iris camera connections via the camera board interface for automated electronic lens control.
“Designed for high-definition varifocal day & night security surveillance applications.”
Frequently Asked Questions
- Q: How does the Auto Iris feature help my security setup?
- A: An auto iris lens automatically adjusts the physical aperture opening based on environmental light. It prevents your video from getting completely overexposed or washed out during midday sun and opens up automatically to capture clear details at dawn or dusk.
- Q: Can this 1/2″ format lens be used with smaller 1/3″ sensors?
- A: Yes, it is fully backward compatible. Mounting a large 1/2″ lens on a smaller 1/3″ sensor crops the field of view slightly, but it yields extraordinary edge-to-edge sharpness because your sensor captures only the highest-quality center portion of the optics.
- Q: What is the main benefit of an IR corrected lens in 24/7 monitoring?
- A: Visible light and Infrared (IR) light have different wavelengths. Standard lenses suffer from “focus shift” at night, causing the image to blur when night-vision IR illuminators turn on. This IR corrected lens keeps the image perfectly sharp in both day and night modes.
- Q: How do I adjust the zoom and focus on this model?
- A: The lens barrel features independent manual adjustment rings for focus and zoom. During installation, you manually dial the zoom to achieve your preferred field of view (between 4mm and 12mm), calibrate the focus until it is crisp, and then lock the rings in place.
- Q: Does this lens require a separate adapter ring to attach to my camera?
- A: This lens belongs to native CS-mount lenses. If your camera body features a standard CS mount, it screws directly onto the camera frame without any additional adapters or physical modifications.
- Q: What does the 0.3m Minimum Object Distance (M.O.D.) mean?
- A: The M.O.D. is 0.3 meters (approx. 1 foot). The lens can clearly focus on objects as close as 30cm away from the front lens element, which allows for versatile installation distances.
