Machine Vision Lenses for Industrial Automation

Professional optics for automated optical inspection and robotics. High-resolution M12 and C-mount designs with documented optical performance at their specified working distances.

Need a compact lens for board-level or embedded vision? Browse the M12 lens collection, which spans wide-angle to telephoto focal lengths, including finite-conjugate designs built for short working distances such as the CIL142 14.4mm M12 lens and the CIL121 21.8mm M12 lens.

M12 + C-mount Mount formats
Up to 25MP Sensor resolutions
Same Day US shipping
12mm C-mount machine vision lens for 2/3 inch sensors

Optical Performance Drives Machine Vision Quality

MTF characterization quantifies the contrast a lens transmits across the image field. Engineers evaluate MTF at multiple field positions to confirm resolution holds from center to corner, critical for reliable defect detection.

Production lines require predictable optical performance across varying conditions. Use our field of view calculator to determine optimal focal length for your sensor and working distance requirements.

Why Do C-Mount Lenses Excel at Large-Sensor Applications?

C-mount designs incorporate multi-element constructions to minimize field curvature. This helps maintain focus across the sensor area, supporting higher corner MTF than simpler designs achieve.

The standardized 17.526mm flange distance enables flexible system design with interchangeable lenses. Calculate your required depth of field to ensure adequate focus range for three-dimensional inspection applications.

Industrial Machine Vision Lens Collection

High-resolution optics for Industry 4.0 applications

14mm M12 Lens CIL142

Telephoto 14.2mm M12 Lens

$59.00

Download .STPView Product
20mm M12 lenses for finite conjugate

Telephoto 21.8mm M12 Lens

$70.00

Download .STPView Product
5mm Lens AR2020 Low Distortion

Low Distortion 5mm M12 Lens

$79.00

Download .STPView Product

Browse Machine Vision Lenses

M12 Lenses Enable Compact Vision Systems

M12 lenses are smaller and lighter than C-mount alternatives, which matters for embedded vision and robotics. The standardized thread mount ensures secure mechanical interface while maintaining compact form factors.

Board-level integration benefits from M12's compact threaded-barrel design. With no fixed flange standard, back focus is set by thread depth, enabling camera modules with minimal total track length. Wide-angle M12 designs achieve extensive field coverage for area monitoring in space-constrained applications.

What Drives Smart Factory Lens Selection?

Industry 4.0 systems require lenses with documented optical characteristics for computational imaging. Precise distortion mapping enables software correction algorithms. Our FOV calculator helps optimize multi-camera coverage.

Robotic guidance applications benefit from lenses with predictable geometric projection. Fixed focal length designs provide consistent magnification relationships, while macro lenses enable detailed inspection at close working distances.

Frequently Asked Questions

What is MTF testing in machine vision lenses?

Modulation Transfer Function testing evaluates how well a lens preserves contrast from object to image. Machine vision applications benefit from lenses with characterized, sufficiently uniform MTF across the sensor, which supports reliable automated inspection.

Why choose fixed focal length over zoom lenses?

At comparable cost and size, fixed focal length lenses typically provide better optical performance, mechanical stability, and repeatability than zoom lenses. They maintain consistent calibration essential for precision measurement applications.

How do C-mount lenses improve corner performance?

C-mount barrels have room for more optical elements, letting designers better correct field curvature and improve corner sharpness and illumination uniformity on large format sensors.

What sensor sizes work with machine vision lenses?

Common formats include 1/3", 1/2", 2/3", and 1" sensors. Match lens image circle to sensor diagonal to prevent vignetting. Performance still varies across the field, so review corner MTF specifications as well.

How does working distance affect lens selection?

Working distance determines required focal length for desired field of view. Use our calculators to determine optimal focal length and depth of field for your application requirements.

Machine Vision Lens Types & Standards

Wide-Angle Lenses

90-200° FOV for area monitoring and robot navigation

Macro Lenses

Close-focus designs for detailed component inspection

High Resolution

Optimized for 5-20MP sensors with minimal distortion

Large Aperture

F1.4-F2.0 for high-speed inspection applications

Low Distortion

Minimal geometric distortion for measurement accuracy

IP-Rated Options

Environmental sealing for harsh industrial conditions