Basler C125-0418-5M-P 5MP C-Mount Fixed Focal Lens

Technical Overview

5MP C-mount fixed focal lens with 4mm focal length, F1.8 aperture, and 100mm minimum working distance.

Key Features

Fits all Basler cameras with a sensor size of up to 1/2"
Metal housing ensures robust construction for industrial environments
C-mount for wide compatibility with industrial cameras
Low ghosting and veiling glare for clear images
High contrast for superior image quality
Locking screws for iris and focus to maintain settings in vibrating environments
Aperture indicators on iris ring and lens barrel for easy adjustment
Accurate focusing mechanism for precise image acquisition
Designed in cooperation with Fujinon, a global leader in optical manufacturing
Optimized for a working distance of 0.5 m to deliver the highest quality image in common machine vision applications
Optimized for 1/2.5" (7.3 mm) sensor formats

Technical Specification Matrix

Parameter	Value
Focal Length	4 mm
Aperture Range (Iris)	F1.8 - F22
Resolution	5 MP
Mount	C-mount
Sensor Format	1/2.5" (7.3 mm image circle)
Minimum Working Distance	100 mm (0.1 m)
Optimal Working Distance	0.5 m
Operating Temperature	-10 °C to +50 °C
Wavelength Range	Visible (400–700 nm)
Physical Weight (kg)	0.06
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. High-Precision Quality Control Inspection

This lens is ideal for inspecting minute details of small electronic components, pharmaceutical products, or fine mechanical parts for defects, ensuring high product quality on manufacturing lines.

Problem Solved

Ensures the detection of tiny flaws such as scratches, misalignments, or foreign particles in products. The 5 MP resolution and low distortion of the lens are critical for achieving zero-defect manufacturing standards.

Machine VisionQuality ControlDefect DetectionHigh ResolutionMicro-inspection

2. Automated Assembly Verification

Suitable for verifying the correct placement and orientation of components in automated assembly processes, especially for intricate assemblies where precise visual confirmation is essential.

Problem Solved

Prevents assembly errors by providing clear, sharp images of small components and their relative positions. Its C-mount compatibility with industrial cameras and a working distance range from 0.1m to infinity (optimal 0.5m) enable reliable operation in automated systems.

Automated AssemblyComponent PlacementOrientation VerificationC-MountIndustrial Automation

3. Robotics Guidance and Navigation (Short Range)

Can be integrated into robotic systems for close-range guidance tasks, such as pick-and-place operations in electronics manufacturing or precise manipulation in laboratory automation.

Problem Solved

Enables robots to accurately perceive and interact with objects within a short working distance (minimum 100mm, optimal 0.5m). The high image quality and compatibility with industrial cameras provide the necessary visual feedback for precise robotic movements in confined spaces.

RoboticsPick-and-PlaceMachine Vision GuidanceShort Working DistanceFactory Automation