Marshall 3.20 mm f/2 CS Mount Fixed Lens for Surveillance Cameras

Engineered for security professionals and discerning photographers alike, the Marshall 3.20 mm f/2 fixed lens for CS-mount cameras delivers crisp, reliable imaging in a compact, plug‑and‑play package. This lens is purpose‑built to slot into standard CS‑mount surveillance cameras, offering a fast aperture, compact dimensions, and a fixed focal length that ensures consistent framing across deployments. Its 3.20 mm focal length provides a broad field of view ideal for entryways, corridors, and tight camera housings, while the fast f/2 aperture enhances light gathering in challenging lighting scenarios. With a length of 1.5 inches and a diameter of 1.1 inches, this lens remains unobtrusive in discreet security installations, helping you maintain image quality without drawing attention to the camera itself.

• Wide, fixed focal length for versatile surveillance coverage: The 3.20 mm focal length is designed to maximize scene coverage in compact camera enclosures, enabling operators to monitor wide areas without the need for zoom or motorized focus adjustments. This makes it a dependable choice for hallways, entrances, lobbies, and small rooms where space is at a premium.
• Bright, fast aperture for superior low-light performance: An opening of f/2 delivers excellent light transmission, helping to preserve detail and color fidelity in dim environments. This is particularly beneficial for night surveillance, dusk-to-dawn monitoring, and settings where artificial lighting is limited or uneven.
• CS-mount compatibility with compact dimensions: Built to integrate seamlessly with standard CS-mount cameras, the lens offers a compact footprint—1.5 inches in length and 1.1 inches in diameter—making it a natural fit for compact domes, boxed housings, and other space‑constrained installations.
• Reliable performance for professional security and photography workflows: While targeted at surveillance, the Marshall fixed CS-mount lens is described as a high‑performance optic suitable for professional contexts. This combination of reliability and predictable imaging makes it attractive for integrators, security professionals, and photographers who require stable, repeatable results.
• Durable construction designed for demanding environments: Marshall emphasizes robust optics and tolerances, ensuring consistent performance across a range of lighting conditions and operational environments commonly encountered in security deployments and studio settings alike.

Technical Details of Marshall 3.20 mm f/2 Fixed CS Mount Lens

• Focal length: 3.20 mm
• Aperture (maximum): f/2
• Mount: CS mount
• Length: 1.5 inches
• Diameter: 1.1 inches
• Type: Fixed focal length lens for CS-mount surveillance cameras
• Intended use: Designed for surveillance cameras, with alignment-friendly optical characteristics suitable for security deployments

how to install Marshall - 3.20 mm f/2 Fixed CS Mount Lens

• 1. Power off your camera and disconnect from power to ensure a safe installation environment.
• 2. If applicable, remove the existing lens or lens assembly from the CS-mount camera following the manufacturer’s guidelines for your specific model.
• 3. Gently align the Marshall 3.20 mm f/2 CS-mount lens with the camera’s CS-mount threads, taking care to orient the lens for the desired field of view and framing.
• 4. Thread the lens into the mount until it sits securely. Avoid overtightening to prevent thread damage and ensure smooth operation.
• 5. Reattach any retaining rings, bezels, or housings as required by your camera setup, then power the system back on and verify image quality. Because this is a fixed focal length lens, fine-tuning the image relies on camera focus and positioning rather than zoom adjustments.

Frequently asked questions

• Q: What is the focal length of this lens? A: The lens has a fixed focal length of 3.20 mm.
• Q: What mount does it use? A: It uses a CS mount, designed for standard CS-mount surveillance cameras.
• Q: What is the maximum aperture? A: The lens features an f/2 maximum aperture, enabling better low-light performance.
• Q: Is this lens suitable for surveillance applications? A: Yes. The Marshall 3.20 mm f/2 CS-mount lens is designed for surveillance cameras, offering reliable optics and a compact form factor ideal for security installations.
• Q: Can photographers use this lens? A: While targeted at surveillance, it can be used by professionals who need a compact, fixed-length CS-mount optic with predictable framing for certain studio or field setups.