20HC, 25 mm, 2/3″ – Tamron Lens

$ 286.81

C-mount, manual focus/iris with lock, high resolution

Product Description

Tamron 20HC 2/3″ 25mm C-Mount Machine Vision Lens

The Tamron 20HC is a precision 25mm fixed focal length lens engineered for high-resolution machine vision and industrial imaging systems. Designed for 2/3″ CCD sensors and compatible with 1/2″ and 1/3″ formats, it delivers distortion-free imaging, excellent contrast, and mechanical durability—ideal for automation, inspection, and robotics.


Key Benefits

  • Focal Length: 25 mm – a versatile choice for general-purpose machine vision

  • Sensor Format: Compatible with 2/3″, 1/2″, and 1/3″ CCD sensors

  • Aperture Range: F/1.6 to F/16 – ensures high performance in various lighting environments

  • Focusing Range: 0.21 m to infinity

  • Manual Iris & Focus: Lockable adjustments for vibration-prone environments

  • Filter Thread: M25.5 x 0.5 mm

  • Distortion-Free: 0% distortion – ensures accurate dimensional inspection

  • Optical Design: 4 groups / 4 elements for clarity and uniformity

  • Lightweight & Compact: Weighs just 40g with a length of 25.5 mm

  • Operating Temperature: -5°C to +50°C


Technical Specifications

Specification Details
Model 20HC
Focal Length 25 mm
Image Sensor Format 2/3″, 1/2″, 1/3″
Aperture Range F/1.6 – F/16
Focus Range 0.21 m – ∞
Mount C-Mount
Filter Size M25.5 x 0.5 mm
Distortion 0%
Optical Construction 4 groups / 4 elements
Back Focus (in air) 11.60 mm
Exit Pupil Position -19.59 mm
Weight 40 g
Overall Length 25.5 mm (at INF)
Operating Temperature -5°C to +50°C

Applications

  • Machine Vision and Factory Automation

  • Barcode Reading and OCR Systems

  • Electronic Inspection and Sorting

  • Robotics Vision Systems

  • Scientific and Lab Imaging


Download Datasheet

Get the full technical details and mechanical drawings in the official PDF:


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