Varifocal lens Bosch LVF-5003C-P2713 2.7–13mm 3MP CS-mount

Bosch LVF-5003C-P2713 2.7–13mm is a varifocal lens designed for 3MP image sensors and CS-mount cameras. The lens delivers an adjustable focal length from wide-angle to short telephoto, allowing precise framing and focus for indoor and outdoor surveillance applications. Mechanical zoom and focus controls enable on-site tuning to match the camera’s field of view and the monitored scene, while build quality and optical design are aimed at stable, repeatable imaging performance with compatible security cameras.

Advantages

The varifocal range (2.7–13 mm) provides flexibility to set wide or narrow fields of view without changing lenses. Optics optimized for 3MP sensors ensure adequate sharpness and image detail across the sensor area. CS-mount compatibility makes it suitable for a wide range of surveillance cameras. Manual zoom and focus mechanisms allow installers to fine-tune framing and focus during setup. The mechanical construction is intended for reliable mounting and consistent optical alignment in fixed installations.

Suitable for

• Indoor surveillance in offices, retail stores, and public buildings
• Outdoor monitoring of entrances, parking areas, and perimeters (when used with weatherproof housings)
• Situations requiring adjustable field of view for different coverage needs
• Replacement or upgrade of fixed lenses on CS-mount security cameras

Key specifications

• Focal length: 2.7–13 mm (manual varifocal)
• Designed image sensor resolution: up to 3 megapixels
• Mount type: CS-mount
• Aperture: manual iris (manufacturer-specified range)
• Focus control: manual adjustable focus
• Field of view: adjustable from wide-angle to narrow tele depending on focal setting
• Construction: metal barrel with precision mechanical controls

How to use

Mount the lens onto a compatible CS-mount camera by securing it to the camera’s mount and tightening the retaining ring. Use the camera live view to adjust the zoom ring to the desired focal length within the 2.7–13 mm range, then set the focus ring until the on-screen image appears sharp across the target area. If the lens has a manual iris, adjust it to balance depth of field and exposure as needed, or use the camera’s electronic exposure controls in combination. After final adjustments, verify focus and framing at the target lighting conditions and lock any set screws to prevent movement.

Usage recommendations

For outdoor installations, pair the lens with a weatherproof camera housing to protect against moisture and dust. When precise identification is required at longer distances, increase focal length and verify image detail at the highest planned sensor resolution. Perform focus and framing checks under both daytime and nighttime lighting if the camera will be used in variable light conditions.