Computar - CMP-T5Z8513CS-IR - 1/3-inch 8.5-40mm F1.3 with Iris & Focus, Day/Night IR

Product Overview

The Computar T5Z8513CS-IR is a 1/3" CS-mount varifocal lens designed for day/night camera applications with IR illumination. With an 8.5-40mm focal length range, fast F1.3 aperture, aspherical optics, and manual iris and focus controls, it supports clear long-range surveillance imaging in stable or moderately variable lighting conditions.

Key Configuration

Model: Computar T5Z8513CS-IR; lens format: 1/3"; focal length: 8.5-40mm; aperture: F1.3; max aperture ratio: 1:1.3; controls: manual iris and focus; mount: CS-mount; max image format: 4.8mm x 3.6mm.

Key Features

• 8.5-40mm varifocal range supports flexible telephoto scene framing.
• F1.3 aperture helps improve image brightness in low-light environments.
• IR-sensitive optical design supports day/night cameras used with IR illumination.
• Manual iris and focus controls allow precise image adjustment during setup.
• CS-mount design supports integration with compatible 1/3" camera systems.

Technical Context

The lens provides a horizontal angle of view from 33.5° to 7.1°, a vertical angle of view from 24.4° to 5.3°, and a diagonal angle of view from 43.9° to 8.9°. Its longer focal range makes it suitable for tighter surveillance views and distance-focused monitoring.

Installation Notes

Use with compatible 1/3" CS-mount cameras. Adjust focal length, iris, and focus for the required scene, then verify image clarity under both visible light and IR-assisted night operation.