Marshall - 7.60 mmf/2 Fixed CS Mount Lens for Surveillance

Meet the Marshall 7.60 mm f/2 fixed CS-mount lens—an expertly engineered optic designed to elevate surveillance and machine-vision systems with broadcast-grade image quality. Specifically optimized for CS-mount cameras, this compact, high-performance lens delivers crisp detail, vibrant color fidelity, and reliable performance across a range of lighting conditions. Its IR-corrected optical design provides impressive results from bright visible light to near-zero light environments, making it an excellent choice for security installations, OEM integrations, and industrial machine-vision applications. With fixed focal lengths available in 3.9mm, 5.0mm, and 7.6mm, you can tailor the field of view to your camera setup and scene requirements while preserving exceptional image clarity. The lens measures a compact 1 inch in length and 1.1 inches in diameter, enabling easy integration into tight enclosures, ceiling mounts, and compact surveillance housings without sacrificing optical quality.

• Fixed focal length, high-speed optics: The 7.60mm focal option with a bright f/2 aperture delivers strong light gathering capability and sharp detail across the frame. This combination is ideal for mid-range surveillance distances and precise machine-vision measurements, helping you capture clear, radio-accurate imagery even when lighting is less than ideal. The fixed focal length design minimizes distortion and distortion-related artifacts, ensuring consistent performance with 5MP sensors.
• IR-corrected design for low-light reliability: Engineered to maintain color accuracy and sharpness under infrared illumination, this lens reduces chromatic aberrations that commonly plague night-time surveillance. Whether you’re monitoring after sunset or using IR illuminators, you’ll benefit from clearer edges, better contrast, and more usable detail in your security feeds and analytical workflows.
• CS-mount compatibility in a compact footprint: Built for standard CS-mount cameras, this lens slides into a wide array of housings with ease. Its compact form—approximately 1 inch long and 1.1 inches in diameter—fits neatly into tight enclosures, ceiling rings, and wall-mount installations, providing flexible placement options without bulk.
• 5MP sensor optimization and image quality: The optical design is tuned for high-performance 5MP imaging with a 1/2" sensor footprint. Expect sharp edge-to-edge detail, accurate tonal reproduction, and minimal distortion across the field of view, making it well-suited for security monitoring, live-broadcast feeds, and precision-machine vision tasks where fidelity matters.
• Versatile, application-ready solution: This lens family (3.9mm, 5.0mm, 7.6mm) is designed for broadcast, OEM, and machine-vision contexts. Whether you’re upgrading legacy security cameras, deploying new surveillance networks, or integrating a lens into an automated inspection system, Marshall delivers dependable optics that help you achieve consistent results across deployments.

Technical Details of Marshall - 7.60 mmf/2 Fixed CS Mount Lens

• Mount type: CS
• Focal length options: 3.9mm, 5.0mm, 7.6mm (fixed)
• Aperture: f/2 (maximum)
• Image format design: Optimized for 5MP imaging with a 1/2" sensor optical design
• IR correction: Yes, designed for use under IR illumination and low-light conditions
• Dimensions: Approximately 1 inch in length and 1.1 inches in diameter
• Construction: Compact, durable optics suitable for security, broadcast, OEM, and machine-vision environments
• Applications: Surveillance cameras, broadcast considerations, OEM integrations, and machine-vision workflows

How to install Marshall - 7.60 mmf/2 Fixed CS Mount Lens

Installing the Marshall 7.60 mm f/2 fixed CS-mount lens is straightforward for technicians familiar with CS-mount optics. Follow these guidelines to ensure proper alignment, focus, and performance in your surveillance or industrial vision system:

• Power down the camera and disconnect from any power source before handling lenses to avoid electrical or static damage to the sensor.
• Remove the existing lens from the CS-mount camera, carefully cleaning the lens mount threads and the camera’s mounting surface to remove dust, oils, and debris that could affect image quality or seal integrity.
• Inspect the new Marshall CS-mount lens to confirm the correct focal length is installed for your application (3.9mm, 5.0mm, or 7.6mm). Align the lens with the camera’s CS-mount threads and gently thread it in by hand until it seats cleanly without cross-threading. Do not overtighten—finger-tight plus a quarter-turn is typically sufficient.
• Secure the lens in place using the camera’s mounting hardware or the supplied retention screws. Ensure the lens is perpendicular to the image plane and seated flat against the mounting surface to prevent tilt or misalignment that can degrade image quality.
• Power on the camera and adjust the camera’s focus. Since fixed focal length lenses lack internal focus adjustment, focus is controlled by the camera’s focus mechanism. Use the camera’s live view and, if available, a test pattern (e.g., 1951 resolution chart) to fine-tune focus for the target scene. If the scene includes varying depth, you may need to adjust the focal plane to balance sharpness across the field.
• Set exposure, white balance, and gain to optimize the scene. With IR illumination or nighttime scenes, monitor IR sensitivity and peak luminance to ensure the subject remains clearly visible without blooming or washout. If your system supports it, enable lens shading correction and any available edge enhancement features to maximize image clarity.
• Test across the intended operating range. Verify performance under standard lighting, during night conditions with IR illumination, and in any challenging environments (glare, reflections, fog). Confirm that the lens maintains consistent resolution and contrast from edge to edge and that there are no mechanical interferences from the housing or cables.

Frequently asked questions

• Q: What focal lengths are available for this Marshall CS-mount lens family?
  A: The lens family includes 3.9mm, 5.0mm, and 7.6mm fixed focal length options, each designed to deliver optimal performance for different fields of view and installation distances.
• Q: What camera mount does this lens use?
  A: This is a CS-mount lens, compatible with standard CS-mount surveillance cameras and machine-vision cameras that accept CS attachments.
• Q: Is the lens IR-corrected?
  A: Yes. The lens incorporates IR correction to maintain image sharpness and color consistency when using infrared illumination or in low-light environments.
• Q: What sensor size does this lens optimize for?
  A: The optical design targets high performance with 5MP imaging on a 1/2" sensor class, delivering crisp detail and good edge fidelity for security and machine-vision tasks.
• Q: What are the physical dimensions of the lens?
  A: The lens measures about 1 inch in length and 1.1 inches in diameter, making it suitable for compact housings and tight installations.
• Q: Can I install this lens without altering my camera’s focus?
  A: Because this is a fixed focal length lens, you’ll focus by adjusting the camera’s focus mechanism after installation. The lens itself does not require manual focusing beyond camera setup.