Vivotek AL-242 12.5-50mm Varifocal Lens F1.4 P-Iris
The Vivotek AL-242 is a professional-grade varifocal lens engineered for demanding surveillance applications requiring exceptional optical performance across variable distances. With a 12.5-50mm focal length and bright F1.4 aperture, this lens delivers sharp, high-contrast imagery in diverse lighting conditions while maintaining compatibility with Vivotek's P-Iris equipped network cameras.
Key Features
- 12.5-50mm varifocal focal length with 4x optical zoom capability
- F1.4 bright aperture for superior low-light performance
- P-Iris control for precise depth-of-field and image clarity optimization
- Advanced optical design minimizing aberrations across zoom range
- Robust construction for outdoor and harsh environment deployment
- Seamless integration with compatible Vivotek network cameras
Technical Highlights
The AL-242's 4x optical zoom spans medium-telephoto to super-telephoto perspectives, enabling operators to capture both contextual wide views and detailed close-ups without image quality degradation. The F1.4 aperture ensures exceptional light-gathering capability, critical for facilities with inconsistent or low ambient lighting where standard lenses would produce noise and blur.
P-Iris technology provides motorized iris control that automatically adjusts based on scene brightness and focal length, maintaining optimal contrast and sharpness. This is particularly valuable in high-dynamic-range environments where traditional fixed-iris designs struggle to balance overexposed and underexposed regions.
Primary Applications
- Traffic monitoring and transportation corridors
- Large-scale municipal and city surveillance
- Commercial perimeter security
- Critical infrastructure protection
- High-resolution evidence capture scenarios
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The AL-242 addresses a specific market segment: integrators and facility managers who require flexible focal range without compromising aperture speed. The 12.5-50mm range is particularly well-suited to mid-to-long-distance surveillance where context and detail must both be captured. The combination of F1.4 brightness and P-Iris control eliminates many trade-offs inherent to varifocal designs, where zoom often reduces effective light transmission.
Compatibility is limited to Vivotek cameras supporting P-Iris and this specific focal length, making pre-deployment verification essential. For organizations already standardized on Vivotek platforms, the AL-242 represents a premium optical upgrade that extends existing camera capabilities without hardware replacement.
