Basler C125-2522-5M 5MP C-Mount Fixed Focal Lens

Technical Overview

5 MP C-mount lens with 25mm fixed focal length, F2.2-F22 aperture, and 1/2.5" sensor format for high-resolution vision.

Key Features

C-mount for wide compatibility with industrial cameras.
Fixed focal length of 25 mm.
Aperture range from F2.2 to F22 for flexible light control.
5 MP resolution, designed for 230 LP/mm.
Optimized for 1/2.5" sensor format (up to 1/2").
Robust metal housing.
Low ghosting and veiling glare.
High contrast imaging.
Locking screws for iris and focus rings ensure stability in vibrating environments.
Aperture indicators on iris ring and lens barrel.
Accurate focusing mechanism.
Optimized working distance of 0.5 m.
Manual focus and iris operation.
Visible wavelength range (400–700 nm).

Technical Specification Matrix

Parameter	Value
Focal Length	25 mm ± 5 %
Aperture Range	F2.2–F22
Image Circle	7.3 mm (1/2.5" format)
Lens Mount	C-mount
Resolution	5 MP (Designed for 230 LP/mm)
Minimum Working Distance	200 mm (0.2 m)
Optimum Working Distance	0.5 m
Wavelength Range	Visible (400–700 nm)
Optical Distortion	Typical -0.5 % (barrel distortion)
Flange Back	17.526 mm +0/-0.2 mm
Overall Optical Length	25.95 mm
Iris Type	Manual
Focus Operation	Manual
Physical Weight (kg)	0.06
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. High-Precision Inspection of Small Electronic Components

The lens's 5 MP resolution, low distortion, and 25mm fixed focal length enable precise imaging of minute details on printed circuit boards or semiconductor wafers, crucial for quality control in electronics manufacturing. The C-mount allows for seamless integration into compact machine vision systems.

Problem Solved

Detects microscopic defects, solder joint issues, or misalignments on small electronic components, ensuring high-quality product assembly and reliability.

Machine VisionQuality ControlPCB InspectionSemiconductorHigh ResolutionLow DistortionC-Mount

2. Automated Assembly Verification in Robotics

Integrated with a C-mount industrial camera on a robotic arm, this lens provides detailed visual feedback for verifying the correct placement and orientation of small parts during automated assembly. Its robust metal housing and locking screws enhance stability in dynamic environments with vibrations.

Problem Solved

Ensures accurate assembly by verifying component presence and position, significantly reducing assembly errors and improving throughput in automated production lines.

RoboticsAutomated AssemblyQuality AssuranceIndustrial AutomationFixed Focal LengthVibration Resistance

3. Pharmaceutical Packaging and Label Inspection

For quality control in pharmaceutical production, this lens captures clear, high-resolution images of small text, barcodes, and integrity seals on drug packaging. The 0.5m optimum working distance is practical for typical conveyor belt inspection setups, ensuring precise scrutiny.

Problem Solved

Guarantees the legibility of critical information and detects packaging defects, preventing errors in medication distribution and ensuring patient safety and compliance.

PharmaceuticalPackaging InspectionLabel VerificationQuality ControlBarcode ReadingMachine Vision