IDS 75mm C-Mount Lens – Model Ma-12M120-C7538 (1.2″, 12MP, F3.8–F16)

The IDS Ma-12M120-C7538 is a high-performance 75 mm C-Mount industrial lens engineered for demanding machine vision and measurement environments. Designed for large 1.2-inch sensors and optimized for 12 MP resolution, it maintains excellent clarity across the frame even at long working distances. Its macro-capable optical path, ultra-low distortion (as low as 0.02%), and stable mechanical construction make it ideal for precision inspection, dimensional analysis, high-contrast imaging, and applications where consistent edge-to-edge resolution is critical. Manual focus and iris adjustment provide fine control, ensuring reliable imaging performance across variable setup conditions and automation needs.

Product Specifications

• Model: Ma-12M120-C7538

• Article Number: 1012317

• Compatible Sensor Size: 1.2″ (Ø19.3 mm)

• Focal Length: 75 mm

• Resolution Capability: Pixel size 3.45 μm (Up to 12MP)

• Mount Type: C-Mount

• Aperture Range: F3.8 to F16 (Manual Adjustment)

• Working Distance: 247 mm to 412 mm

• Distortion Performance:

  • 0.02% at 0.35X

  • 0.07% at 0.50X

  • 0.10% at 0.20X

• Back Focal Length: 14.60 mm

• Chief Ray Angle: 5.68°

• Effective Diameter: Front: 22.90 mm, Back: 19.40 mm

• Dimensions: Ø41.00 mm × 90.72 mm

• Filter Thread: M30.5 × 0.5–6H

• Weight: 0.18 kg

• Operating Temperature: −20°C to +60°C

Field of View (H × V × D)

At Working Distance ≈ 247 mm (Magnification ~0.48X)

• 1″ Sensor: 34.8 × 19.6 mm
  Diagonal ≈ √(34.8² + 19.6²) ≈ 39.9 mm

• 2/3″ Sensor: 26.5 × 20.0 mm
  Diagonal ≈ √(26.5² + 20.0²) ≈ 33.3 mm

• 1/2″ Sensor: 18.3 × 13.8 mm
  Diagonal ≈ √(18.3² + 13.8²) ≈ 22.9 mm

• 1/1.8″ Sensor: 21.2 × 15.9 mm
  Diagonal ≈ √(21.2² + 15.9²) ≈ 26.3 mm

At Working Distance ≈ 412 mm (Magnification ~0.20X)

• 1″ Sensor: 75.9 × 42.7 mm
  Diagonal ≈ √(75.9² + 42.7²) ≈ 87.1 mm

• 2/3″ Sensor: 57.7 × 43.6 mm
  Diagonal ≈ √(57.7² + 43.6²) ≈ 72.3 mm

• 1/2″ Sensor: 40.0 × 30.0 mm
  Diagonal ≈ √(40.0² + 30.0²) ≈ 50.0 mm

• 1/1.8″ Sensor: 52.9 × 40.0 mm
  Diagonal ≈ √(52.9² + 40.0²) ≈ 66.0 mm
  

Key Benefits

• High-Resolution 12MP Optics: Designed for 3.45 μm pixel sensors, ensuring crisp, high-contrast imaging for precision inspection tasks.

• Large 1.2″ Sensor Coverage: Supports Ø19.3 mm sensors, delivering uniform illumination and minimized edge falloff across wide formats.

• Ultra-Low Distortion Performance: Distortion as low as 0.02% provides exceptional accuracy for dimensional measurement and metrology workflows.

• Optimized Long Working Distance: Effective performance from 247–412 mm makes it suitable for applications requiring stable imaging at extended ranges.

• Precision Macro Capability: Stable magnification (0.20X–0.50X) enables detailed inspection of small or distant features without loss of clarity.

• Industrial-Grade Mechanical Stability: Robust build with a 0.18 kg housing ensures vibration resistance and long-term reliability in automated environments.

• Manual Iris and Focus Control: Fine optical tuning for exposure, depth of field, and sharpness to match exact machine vision requirements.

• Consistent Edge-to-Edge Quality: Wide effective aperture (Front Ø22.90 mm) maintains even sharpness across the full image field.

 Download Datasheet

Get the full technical details and mechanical drawings in the official PDF:

• Click here to download 1012317 Datasheet

Related IDS Imaging Lenses (Same Series)

• Ma-12M120-C2528 – 25 mm, 1.2″, 12MP
  A versatile wide-to-standard focal length option ideal for general inspection, electronics assembly verification, and applications needing larger field of view with minimal distortion.
• Ma-12M120-C3528 – 35 mm, 1.2″, 12MP
  Well-balanced for mid-range machine vision, offering strong sharpness and accurate rendering for dimensional checks, component alignment, and precision automation tasks.
• Ma-12M120-C5028 – 50 mm, 1.2″, 12MP
  A higher-magnification alternative designed for detailed inspection work, providing excellent contrast at moderate working distances in metrology and measurement systems.

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