Basler C11-1220-12M-P 12MP C-Mount Fixed Lens

Technical Overview

Premium 12mm fixed focal C-mount lens for up to 1.1" sensors, 12MP resolution, F2.0-F16 aperture, with low distortion.

Key Features

Fits all Basler cameras with a sensor size of up to 1.1".
Durable metal housing.
C-mount for broad compatibility.
Equipped with locking screws for iris and focus.
Features aperture indicators on iris ring and lens barrel.
Delivers high contrast images.
Designed for 12 MP cameras.
Offers excellent price/performance ratio.
Supports visible wavelength range (400–700 nm).

Technical Specification Matrix

Parameter	Value
Focal Length	12 mm (12.39 mm ± 5 %).
Aperture Range	F2.0–F16
Resolution	12 MP
Image Circle	17.6 mm (1.1" format)
Lens Mount	C-mount
Minimum Object Distance (M.O.D.)	0.1 m (100 mm)
Operating Temperature	-20 to 60 °C (-4 to 140 °F)
Optical Distortion	Typical -3.10 %
Wavelength Range	Visible (400–700 nm)
Back Focal Length (s'F)	10.15 mm
Flange Back	17.526 mm
Aperture with Highest Resolution	F2.3
Optimum Working Distance	0.4 m
Relative Illumination at Full Aperture	58 %
Physical Weight (kg)	0.21
Dimensions L x W x H (cm)	0 x 0 x 0

Industrial Applications

1. High-Precision Quality Control in Manufacturing

This lens is ideally suited for automated quality control systems on manufacturing lines, inspecting small components or surfaces for defects.

Problem Solved

The 12 MP resolution and low optical distortion (-3.10%) enable the detection of minute flaws, ensuring superior product quality and minimizing waste in demanding production environments. Its 100mm minimum working distance facilitates close-up inspection, while the C-mount ensures compatibility with standard industrial cameras.

Quality InspectionDefect DetectionMachine VisionHigh Resolution ImagingClose-up Inspection

2. Automated Assembly Verification in Electronics

Perfect for verifying the precise placement and integrity of intricate electronic components during automated assembly processes.

Problem Solved

With a 12 MP resolution, 12mm focal length, and a 100mm minimum working distance, this lens can capture highly detailed images of complex circuit boards and small electronic parts. The 1.1" image circle and up to 61.2° horizontal angle of view allow for comprehensive coverage of assembly areas, preventing functional failures.

Electronics ManufacturingAutomated Optical Inspection (AOI)Component Placement VerificationCircuit Board InspectionMicro-inspection

3. Medical Device Surface and Feature Inspection

Suited for non-contact inspection of medical devices, ensuring the integrity of surfaces and the accuracy of small, critical features.

Problem Solved

The 12 MP resolution and visible wavelength range (400–700 nm) provide the necessary detail and color accuracy for examining medical device surfaces for imperfections or verifying the dimensions of small features. The durable metal housing supports its use in controlled industrial environments common in medical manufacturing.

Medical Device ManufacturingSurface InspectionDimensional VerificationHigh-Resolution MicroscopyNon-Contact Measurement