Computar - TEC-M55 - 5MP Telecentric Lens, 55mm

Product Overview

Computar TEC-M55 is a telecentric lens designed for high-resolution imaging with ultra-low distortion. It features a compact body design, compatibility with 5MP sensors, relative illuminance greater than 80%, and a working distance range of 0.14m to infinity. The lens provides manual focus and iris control with a C-Mount interface.

Key Configuration

• • Focal length: 55 mm; maximum aperture ratio: 1:2.8; aperture range: F2.8 – F32C
• • Image format: 8.8 × 6.6 mm (11 mm diagonal); max sensor compatibility: 2/3" type
• • Working distance: 0.14 m – ∞; object dimension at MOD: 17 × 13 mm
• • Mount: C-Mount; filter thread: M43 × 0.75 mm
• • Dimensions: 53 mm × 92.9 mm (diameter × length); weight: 320 g

Key Features

This lens features ultra-low distortion of less than 1%, making it ideal for precise measurement and industrial vision applications. It ensures uniform brightness across the entire image with a relative illuminance rate exceeding 80%. The high-resolution optics are housed in a compact body design that remains compatible with 5MP sensors. For maximum control, the lens includes manual iris and focus adjustments to maintain image consistency in various settings.

Technical Context

The lens features a 33.0 mm front aperture and a 13.3 mm rear aperture, utilizing a standard 17.526 mm C-mount flange with a 29.8 mm back focal length. It offers precise fields of view across various sensor sizes, including a 9.2° horizontal angle for 2/3" types, 6.7° for 1/2" types, and 5.0° for 1/3" types. 

Installation Notes

The dimensions are 53 mm in diameter by 92.9 mm in length, and a weight of 320 g. It utilizes a standard C-mount for broad compatibility and is designed for stable operation within a temperature range of 20°C to 50°C (68°F to 122°F).