Axis CS Lens F0.9 P-Iris 4-10mm 02448-001

Axis CS Lens F0.9 P-Iris 4-10mm 02448-001

The Axis CS Lens F0.9 P-Iris (4-10 mm) is a premium varifocal lens engineered for professional IP surveillance installations requiring exceptional performance across diverse lighting conditions. Designed for 1/1.8" sensors, this CS-mount lens delivers superior optical quality and precise iris control, making it ideal for mission-critical security applications in high-traffic and complex environments.

Key Features

• Wide F0.9 aperture for superior low-light performance and clarity
• 4–10 mm varifocal focal length for flexible framing options
• P-Iris technology for precise aperture control and enhanced depth of field
• IR-corrected optical design for accurate color reproduction and night imaging
• CS-mount compatibility with compatible Axis camera bodies
• Compact dimensions: 77.9 x 80.1 mm for streamlined integration

Technical Highlights

The F0.9 maximum aperture is significantly wider than standard surveillance lenses, allowing substantially more light to reach the sensor. This translates to superior image clarity in low-light environments without relying solely on digital noise reduction or high ISO sensitivity. The P-Iris (Precision Iris) mechanism provides electronic control over aperture opening, enabling the camera to optimize depth of field, contrast, and sharpness in real time based on scene conditions and focal length changes.

The 4–10 mm varifocal range delivers flexible viewing angles, from wider perspectives at 4 mm to more telephoto framing at 10 mm. This versatility reduces the need for multiple fixed-focal-length lenses across installations. IR correction ensures accurate color rendering during daytime operation while maintaining performance in infrared-illuminated night scenes.

Applications

This lens is well-suited for surveillance deployments where lighting conditions are unpredictable or challenging, including airport terminals, parking structures, retail environments, corporate campuses, and secure facilities. Its combination of wide aperture, varifocal range, and precision iris control makes it particularly valuable for situations requiring both detailed facial recognition and broader environmental awareness.

James Everett

The F0.9 aperture and P-Iris combination represent a significant advantage over fixed-aperture lenses in variable lighting scenarios. The precision iris allows the camera system to maintain consistent exposure and contrast across day/night transitions and shadow zones—critical for forensic-quality footage. The 4–10 mm focal length covers approximately 54° to 19° field of view on 1/1.8" sensors, providing practical flexibility for single-lens installations where mounting position flexibility is limited.

IR correction is particularly important in installations mixing visible and infrared illumination, preventing color shift and maintaining image fidelity. This lens is recommended for integrators prioritizing image quality over budget constraints in challenging surveillance environments.