Vivotek AL-252 9-50mm F1.5 i-CS Surveillance Lens
The Vivotek AL-252 is a professional-grade surveillance lens engineered for demanding security applications requiring exceptional optical performance across variable lighting and distance conditions. Featuring a versatile 9-50mm focal length paired with a fast F1.5 aperture, this i-CS mounted lens delivers superior image clarity, extended range coverage, and reliable low-light performance in critical surveillance environments.
Key Features
- Extended Focal Range (9-50mm) – Provides flexible zoom capability for both wide-area coverage and detailed long-distance observation
- Fast F1.5 Aperture – Optimized light gathering for superior performance in challenging low-light and variable lighting conditions
- i-CS Electronic Control – Enables precision electronic fine-tuning of focus and iris settings for sharp, consistent image quality across the zoom range
- CS-Mount Design – Direct compatibility with industry-standard CS-mount camera platforms
- 1/1.8" Image Circle – Supports high-resolution sensor imaging with excellent corner-to-corner optical performance
- Durable Construction – Built for reliable indoor and outdoor deployment in diverse environmental conditions
Technical Specifications
- Model: AL-252
- Part Number: 640027100G
- Focal Length: 9–50mm
- Aperture: F1.5
- Image Circle: 1/1.8"
- Iris Type: i-CS (electronic)
- Mount Type: CS-Mount
System Compatibility
The AL-252 is optimized for seamless integration with Vivotek IP camera models including IP9165-HT, IP9165-LPC, IP9191-HT, IP9165-HT-v2, and IP9165-LPC-v2. Compatible with any surveillance system or network camera equipped with CS-mount and i-CS electronic control support.
Ideal Applications
- Urban and metropolitan surveillance systems
- Industrial facility monitoring
- Large-scale commercial security installations
- Critical infrastructure and perimeter protection
- Mixed-distance monitoring requiring zoom flexibility
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The AL-252 balances versatility with optical excellence. The 9-50mm range (approximately 5.5x zoom) positions this lens between ultra-wide fixed lenses and extreme telephoto options, making it suitable for mixed-distance surveillance where a single lens must cover both overview and detail zones. The F1.5 aperture is particularly valuable in surveillance deployments where supplemental lighting is limited or undesirable.
The i-CS electronic control system represents a significant operational advantage over manual iris lenses—it allows the camera to dynamically adjust exposure settings, reducing the need for manual recalibration during installation and maintaining consistent image quality as ambient conditions change throughout the day. For integrators deploying Vivotek systems, this lens offers reliable performance without premium pricing.
