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Small silver CCTV lens barrel marked 4mm F1.8

Bluecctv

Bluecctv LB CLB04 4mm fixed lens surveillance accessory

SKU CH-QPS3-6QBHN

A 4 mm fixed CCTV lens with a 76° viewing angle and F1.8 aperture for 1/3-inch image sensors

  • Fixed 4.0 mm focal length captures a 76° field of view
  • Bright F1.8 aperture gathers more light for clearer low-light images
  • Designed for 1/3-inch image sensors ensures optimal compatibility
  • Compact fixed-lens design simplifies installation in tight surveillance spaces

Fixed 4mm CCTV lens for 1/3 sensors

The Bluecctv LB CLB04 is a fixed 4mm lens built for 1/3 inch image sensors in CCTV cameras. It provides a 76° angle of view with an F1.8 aperture for low-light performance. This accessory suits installers fitting or replacing lenses on compatible box cameras.

CS-mount installation with fixed focal length

The lens threads into a standard CS-mount camera body without tools. Focus is set once during installation because the 4.0mm focal length cannot be adjusted. Verify the sensor format and mount type before purchase; the lens will not cover larger sensors and cannot zoom.

Highlights

  • Fixed 4.0 mm focal length captures a 76° field of view
  • Bright F1.8 aperture gathers more light for clearer low-light images
  • Designed for 1/3-inch image sensors ensures optimal compatibility
  • Compact fixed-lens design simplifies installation in tight surveillance spaces

Specifications

BrandBluecctv
ModelLB CLB04

Questions about this item

How can I confirm the LB CLB04 lens is focused correctly after installation?

Mount the lens on the camera, aim at a target 3–5 metres away, and verify the live view shows sharp detail across the 76° field of view with the iris opening at F1.8.

What comes with the LB CLB04 and what must I supply separately?

The package contains only the 4 mm fixed lens; you must provide a compatible C/CS-mount camera body with a 1/3-inch sensor and any required mounting brackets or cables.

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