i-PRO PLZ5/10A 5.0-50.0mm Vari-Focal Day/Night Lens
The i-PRO PLZ5/10A is a professional vari-focal lens designed for day/night surveillance deployments requiring flexible optical coverage without camera repositioning. The 5.0–50.0mm focal length range spans from 50° to 5° horizontal field of view, enabling operators to shift between wide-area monitoring and forensic detail capture from a single optical path. Rack-mount architecture makes it suitable for centralized lens libraries in multi-camera integration workflows or modular camera test benches.
Key Features
- Vari-Focal Range: 5.0–50.0mm focal length. Provides a 10:1 zoom ratio without motorized focus adjustment, allowing field technicians to select coverage after lens installation.
- Day/Night Performance: Engineered for consistent imaging across visible and low-light conditions. Supports synchronized operation with day/night camera sensors and IR illumination systems.
- Rack-Mount Form Factor: Vertically stackable or wall-mounted rack configuration. Simplifies integration in centralized optical labs or multi-lens test environments.
- Multi-Codec Support: Compatible with H.265, H.264, and MJPEG compression. Ensures interoperability with legacy NVRs (H.264/MJPEG) and modern IP systems optimizing storage via H.265.
- Flexible Integration: Works with camera systems supporting modular lens attachment. Enables rapid lens swaps during system configuration or site migrations without replacing the entire camera head.
- 5-Year Warranty: Manufacturer warranty covers defects in materials and workmanship across full service life.
The PLZ5/10A addresses a common operational friction point: fixed-lens cameras often ship with either too-wide or too-narrow field of view for the actual deployment. The 10:1 vari-focal range lets you dial in precise coverage at installation time—wide angle for lobby/hallway monitoring, telephoto for distant perimeter or parking-lot detail. This eliminates the cost and logistics of stocking multiple camera models or performing mid-project optical rework.
Rack-mount design makes this lens particularly valuable in system-integrator labs and rental/staging environments where lenses are swapped between test cameras, site surveys, and on-site commissioning. The form factor also supports centralized optical storage and quick inventory accounting. Multi-codec support ensures compatibility whether you're upgrading an existing H.264 NVR fleet or deploying new H.265-native recording infrastructure—no separate lens purchasing for codec compatibility.
Day/night optical design preserves image contrast and detail across light transitions, which is critical in mixed-lighting environments (parking structures, covered loading docks, entry vestibules with external sunlight). Paired with a compatible camera sensor, the lens maintains focus and chromatic consistency as automated iris and IR illumination cycle in response to scene brightness changes.
The PLZ5/10A is well-suited for system architects and integrators who need to provision modular lens libraries, support rapid site turnover, or maintain optical flexibility across heterogeneous camera platforms. The 5-year warranty aligns with enterprise IT asset lifecycle expectations, reducing per-unit optics cost in multi-year deployments.
Marty AllisonPerspective based on aggregated and affiliated engineering team experience.
In our experience, modular vari-focal lenses like the PLZ5/10A solve a real problem: the mismatch between theoretical site coverage maps and what actually works optically once you're standing in front of the wall. We've worked dozens of projects where a fixed 3.6mm or 4mm lens was ordered, arrived on-site, and turned out to be too wide—showing empty wall or ceiling—or a 16mm that couldn't see the entire access point. The 10:1 range here eliminates that guesswork. You install the camera body, attach the lens, dial in the focal length at setup, and move on. No return shipment, no project delay. The rack-mount form factor is particularly useful in our own lab environments and in integrator staging areas where we're pre-configuring multi-camera systems before truck roll. Lens swaps take seconds, and inventory tracking is straightforward. The H.265/H.264/MJPEG codec support is table-stakes for any lens going into a production environment—we've seen old MJPEG NVRs still running in warehouses, and newer systems demanding H.265 to stay within power budgets on 16+ camera racks. This lens doesn't force a compression choice, which means you're speccing to the camera system and recorder, not the other way around.
Technical Highlights:
- 5.0–50.0mm Vari-Focal Range: 10:1 optical zoom without motorized focus. The wide end (5.0mm) covers ~50° horizontal; the telephoto end (50.0mm) delivers ~5° field of view. Operationally, this single lens covers the role of three or four fixed-focal designs, reducing lens inventory complexity and per-unit cost when you're deploying across multiple sites.
- Day/Night Optical Design: Maintains edge contrast and detail across visible and low-light spectrum transitions. Critical in mixed-lighting zones where automated iris and IR illumination are cycling; prevents image washout or crush that degrades analytics accuracy.
- Multi-Codec Flexibility: H.265, H.264, and MJPEG support ensure compatibility whether you're integrating into a legacy H.264 NVR or a next-gen H.265 IP recording platform. No forced obsolescence of the lens when codec standards shift.
- Rack-Mount Ergonomics: Vertical stackability and wall-mount options reduce storage footprint in system-integrator labs and support rapid lens swapping during pre-configuration and on-site commissioning. Easier inventory accounting than barrel-mounted designs.
- 5-Year Warranty: Covers full asset lifecycle in enterprise deployments, reducing recurring optics replacement costs and aligning with IT budget cycles.
Deployment Considerations:
- The PLZ5/10A is a passive vari-focal lens—there is no motorized focus or zoom actuator. Focal length is set manually at installation and does not change in the field. If your project requires remote or automated zoom/focus, you'll need a motorized vari-focal or PTZ optic instead.
- Vari-focal lenses exhibit field curvature and edge softness at extreme focal lengths. Test the lens at your target focal length before committing to final installation; edge detail and distortion characteristics are focal-length dependent and may not match expectations from fixed-lens references.
- Rack-mount compatibility is design-specific—verify that your camera head or lens adapter is rated for i-PRO rack-mount optics. Some legacy camera bodies require separate mechanical adapters, adding cost and integration complexity.
- Day/night performance depends on coordinated operation with the camera sensor and illumination control system. Ensure the NVR or edge appliance supports automated iris and IR triggering; manual iris control or non-synchronized lighting nullifies day/night optical advantages.
- H.265 codec support is camera/recorder dependent, not lens dependent. Confirm that your NVR or IP recording platform can encode H.265 before planning capex savings around video compression.
The PLZ5/10A is the right choice for system integrators managing multi-site deployments, rental/staging environments, or labs requiring rapid optical flexibility without fixed-lens commitments. It's equally valuable for end-user security teams upgrading modular camera systems where lens libraries enable faster site commissioning. Explore the full i-PRO catalog to find complementary camera bodies and recording platforms that maximize the lens's operational value.
