Bosch LVF-4000C-D2812: 2.8-12mm f/1.3 Varifocal CS-Mount Lens with 4.2x Optical Zoom

Introducing the Bosch LVF-4000C-D2812, a high-performance varifocal lens designed for professional surveillance applications. With a versatile 2.8–12 mm focal length and a bright maximum aperture of f/1.3, this CS-mount lens delivers exceptional image quality across the full zoom range. Engineered for reliability in security environments, the LVF-4000C-D2812 combines precision optics, smooth manual control, and durable construction to meet the demanding needs of modern video surveillance systems. Whether you’re securing a storefront, monitoring a parking facility, or overseeing critical infrastructure, this lens is built to capture detailed, sharp imagery from wide-angle to telephoto perspectives.

Key features of the LVF-4000C-D2812 center on optical performance, flexibility, and ease of integration. The lens provides a seamless transition between broad scene capture and close-up identification, without sacrificing image fidelity. Its robust CS-mount compatibility makes it an ideal upgrade for many CCTV cameras, enabling upgrades to image quality without changing camera bodies. The combination of a compact form factor, precise manual focus, and a reliable zoom mechanism means operators can quickly adjust framing to match changing scenes or investigative needs. In security environments where lighting can vary dramatically, the fast f/1.3 aperture helps preserve detail in low-light conditions and supports effective color rendition and contrast.

• Versatile focal range with 4.2x optical zoom: 2.8–12 mm focal length covers wide-area surveillance and close-up details, allowing flexible framing for doorways, aisles, stairwells, and faces. The smooth optical zoom preserves line sharpness and minimizes distortion across the zoom range, so critical details remain legible at every setting.
• Bright f/1.3 aperture for low-light performance: A fast maximum aperture improves light gathering, enabling clearer images in dim environments without relying heavily on camera gain. This helps reduce motion blur and artifacts while preserving more natural color and edge definition during night or transitional lighting.
• High-quality optics and coatings: Precision glass elements with multi-coating reduce flare, reflections, and ghosting, delivering higher contrast and faithful color reproduction in challenging lighting. The result is crisp edge-to-edge sharpness from the periphery to the center of the frame across the full zoom range.
• Durable CS-mount design for easy integration: The LVF-4000C-D2812 is built for compatibility with a wide range of CS-mount surveillance cameras. Its robust housing and thoughtful mechanical design promote reliable operation in everyday security deployments and controlled installation environments.
• Precise manual focus and zoom control: A smooth, repeatable manual focus and zoom mechanism lets operators quickly dial in the exact framing required for compelling evidence and quick scene assessments, ensuring consistent optical performance during shifts and long-term monitoring.

Technical Details of Bosch LVF-4000C-D2812

• Focal length: 2.8–12 mm (4.2x optical zoom)
• Aperture: Maximum f/1.3
• Mount: CS-mount
• Construction: Durable lens housing designed for surveillance environments
• Focus: Manual focus with precise adjustment
• Zoom: Manual zoom with smooth operation across the focal range
• Optics: High-quality glass elements with multi-coating to reduce reflections and enhance contrast
• Compatibility: Designed for CS-mount CCTV cameras and compatible security systems

How to install Bosch LVF-4000C-D2812

Installing the LVF-4000C-D2812 is a straightforward process that fits seamlessly into existing CS-mount camera setups. Follow these steps to ensure proper alignment and optimal image performance:

• Power down your camera system before removing any lenses to avoid static or electrical damage.
• Remove the existing lens from the CS-mount camera, taking care not to disturb other camera components.
• Attach the LVF-4000C-D2812 to the camera’s CS-mount by aligning the mounting threads and carefully threading the lens into place. Do not overtighten; a snug, secure fit is sufficient to maintain proper alignment.
• Gently adjust the zoom and focus rings to achieve the desired framing. Start with a wide angle and progressively zoom in to a suitable close-up, ensuring that the subject remains within the frame and remains in sharp focus across the focal range.
• Test the camera in your typical operating environment. Check for any vignetting, distortion, or misalignment, and fine-tune focus and framing as needed. Recheck after power-up to confirm stability and consistency across the zoom range.

Frequently asked questions

• Q: What is the focal length range of the Bosch LVF-4000C-D2812?
  A: The lens offers a 2.8–12 mm focal range, providing 4.2x optical zoom for flexible field coverage.
• Q: What is the maximum aperture?
  A: The lens features a bright maximum aperture of f/1.3, which helps in low-light conditions and supports higher image quality with less noise.
• Q: Is this lens compatible with CS-mount cameras?
  A: Yes. The LVF-4000C-D2812 is specifically designed for CS-mount surveillance cameras and integrates with a wide range of camera bodies that support CS-mount lenses.
• Q: Does the lens have auto-focus or is it manual only?
  A: The LVF-4000C-D2812 provides manual focus and manual zoom control, enabling precise framing and focus adjustments as needed for critical surveillance tasks.
• Q: What environments is this lens suited for?
  A: Built for professional surveillance, the lens is designed to perform reliably in security installations, with a compact, durable housing suitable for indoor, semi-outdoor, and controlled environments where robust imaging is essential.