Hikvision TV0550D-4MPIR 4MP DC Auto-Iris Vari-Focal CCTV Camera Lens

The Hikvision TV0550D-4MPIR is a precision-engineered vari-focal lens designed for professional surveillance systems requiring superior image quality and adaptive performance across diverse lighting conditions. This 4MP-rated optical solution combines automatic aperture control with flexible focal length adjustment, making it an ideal choice for integrators and security professionals seeking reliable, versatile lens technology for IP-based CCTV installations.

Key Features

4MP Resolution Support — Delivers sharp, detailed imagery with sufficient pixel density for facial recognition, license plate capture, and wide-area monitoring

DC Auto-Iris Technology — Automatically adjusts aperture to optimize exposure across dynamic lighting environments, eliminating image wash-out in bright conditions and maintaining clarity during low-light transitions

Vari-Focal Design — Manual focal length adjustment provides field-of-view flexibility without camera repositioning, accommodating custom deployment scenarios and reducing installation complexity

IR Compatibility — Optimized optical design supports infrared illumination, enabling effective operation in complete darkness and extending surveillance coverage to 24/7 nighttime monitoring

DC Motor Control — Motorized iris mechanism responds to ambient light changes, ensuring consistent image quality without manual intervention

Technical Specifications

This lens is engineered specifically for 4MP camera sensors, making it compatible with modern mid-resolution surveillance systems. The auto-iris mechanism operates via DC motor control, integrating seamlessly with standard camera lens control interfaces. Its vari-focal construction allows adjustment across a defined focal length range, accommodating everything from medium-distance perimeter monitoring to closer-range detailed observation. The IR-corrected optical path ensures minimal aberration when paired with infrared lighting sources, critical for maintaining image fidelity in night vision applications.

Ideal Applications

Perimeter and facility surveillance in variable lighting environments

Retail and commercial security with mixed indoor/outdoor coverage

Critical infrastructure and night-vision dependent installations

Integrations requiring adaptive aperture control and focal length flexibility

24/7 monitoring scenarios combining daylight and IR illumination

Marty Allison

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

The TV0550D-4MPIR represents a mature, field-proven lens option for professionals building 4MP surveillance systems. The DC auto-iris mechanism is particularly valuable in mixed-lighting environments where manual iris adjustment would be impractical—think retail frontage with bright sunlight during day and IR-only lighting at night. The vari-focal design eliminates the need to stock multiple fixed-focal lenses, streamlining logistics for integrators managing diverse deployment requirements.

Ensure your camera body supports DC iris motor control; not all 4MP cameras provide this interface. IR compatibility is a practical asset rather than a specialty feature, making this lens a straightforward choice for any installation combining night vision capability with daylight operation.