Vivotek AL-242 12.5-50mm Varifocal Lens F1.4 P-Iris

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

Ted Perry

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.