Basler C23-5028-5M-P 5MP C-Mount Fixed Focal Lens

Technical Overview

5MP C-mount fixed focal length lens (48mm) for 2/3" sensors, offering high resolution (147 LP/mm) and minimal distortion for precise machine vision.

Key Features

Compatible with all Basler cameras featuring a sensor size of up to 2/3"
Robust metal housing construction
Standard C-mount interface for broad compatibility
Equipped with locking screws for secure iris and focus settings
Clear aperture indicators present on both the iris ring and lens barrel
Delivers high contrast imagery
Exhibits a typical optical distortion of -0.12 %
Designed for minimal vignetting
Optimized for 5-megapixel cameras with image sensors up to 11 mm diagonal
Manual control for both focus and iris settings

Technical Specification Matrix

Parameter	Value
Focal Length	48 mm ± 5% (Nominal 50 mm)
Aperture Range	F2.8–F16
Aperture with Highest Resolution	F3.1
Image Circle	11 mm (2/3" format)
Focus Range	0.4 m to infinity
Optimum Working Distance	0.4 m
Relative Illumination at Full Aperture	72 %
Resolution	Designed for 147 LP/mm (3.40 µm pixel size)
Optical Distortion	Typical -0.12 %
Wavelength Range	Visible (400–700 nm)
Back Focal Length	22.88 mm
Flange Back	17.526 mm
Mount	C-mount
Focus/Iris Operation	Manual
Operating Temperature	-10–50 °C (14–122 °F)
Storage Temperature	-20 to 60°C (-4 to 140 °F)
Operating Humidity	10 to 90% relative humidity, non-condensing
Filter Thread	M27 x .5
Physical Weight (kg)	0.085
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. High-Precision Quality Control in Electronics Manufacturing

The Basler C23-5028-5M-P lens is ideally suited for detailed inspection of miniature electronic components, such as printed circuit boards (PCBs), intricate solder joints, or semiconductor wafers. Its 5 MP resolution and extremely low optical distortion (-0.12%) ensure precise imaging of fine features, while the 0.4 m optimum working distance facilitates close-up examination on automated production lines.

Problem Solved

Ensures the accurate detection of defects on miniature electronic components, significantly improving product reliability and minimizing material waste in high-volume manufacturing processes.

Machine VisionPCB InspectionSolder Joint AnalysisSemiconductor Wafer InspectionQuality AssuranceHigh Resolution ImagingLow Distortion

2. Automated Assembly Verification in Robotics

This lens's C-mount compatibility and 50mm fixed focal length make it an excellent choice for integration into robotic vision systems used for automated assembly tasks. The broad aperture range of F2.8-F16 provides flexibility to adapt to varying lighting conditions, and its precise focus range (0.4m to infinity) supports diverse tasks, from close-up component placement to recognition of larger parts within a robotic workspace.

Problem Solved

Provides reliable verification of correct component placement and critical assembly steps, thereby increasing the overall efficiency, accuracy, and consistency of automated manufacturing cells.

Robotic VisionAssembly AutomationPart VerificationC-mountIndustrial RoboticsFlexible IlluminationDepth of Field Control

3. Medical Device Component Inspection

With its high resolution (147 LP/mm), minimal distortion, and specified operation in the visible wavelength range (400-700 nm), this lens is perfectly suited for inspecting small, intricate features found on medical device components, including catheters, stents, or pharmaceutical packaging. The robust metal housing ensures durability and suitability for environments requiring strict cleanliness, such as cleanrooms.

Problem Solved

Guarantees the integrity, precision, and adherence to stringent quality standards for critical medical device parts, essential for regulatory compliance and patient safety.

Medical Device ManufacturingQuality ControlMicro-inspectionCleanroom CompatiblePrecision OpticsVisible Spectrum ImagingDimensional Measurement