Lensation Lens, BM4218C, 4.2 mm, 1/3″

Lensation BM4218C – 4.2 mm S-Mount Lens | High Light Intensity, 1/3″ Sensor Compatible

The Lensation BM4218C is a compact, high-performance S-Mount (M12) lens engineered for industrial and embedded vision systems. Supporting up to 1–2 megapixel resolution and optimized for 1/3″ sensors, this lens stands out with its wide-angle 89° field of view and ultra-bright F1.8 aperture, making it an ideal choice for low-light or space-constrained imaging applications.

Product Specifications

• Brand: Lensation (Lensagon Series)

• Model: BM4218C

• Mount: S-Mount (M12)

• Compatible Sensor Format: 1/3″

• Focal Length: 4.2 mm

• Aperture: F1.8 (Fixed Iris)

• Minimum Object Distance (MOD): 0.2 m

• Back Focal Length: 7.21 mm

• Angle of View:

  • Diagonal: 89°

  • Horizontal: 71°

  • Vertical: 49.5°

• Megapixel Compatibility: 1–2 MP

• IR Correction: No

• IR Cut Filter: Yes

• Optical Distortion: -29%

• Focus: Fixed

• Weight: 5.4 g

• Lens Type: Standard

Key Benefits

• Ultra Bright F1.8 Aperture – Delivers excellent performance in low-light environments

• Wide 89° Diagonal Field of View – Captures more area for accurate analysis

• Lightweight and Compact Design – Perfect for embedded or mobile imaging systems

• Factory Pre-Set Focus – No additional adjustment required

• High Compatibility – Suitable for a wide range of industrial and automation vision applications

Download Datasheet

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

• Click here to download BM4218C Datasheet (Insert correct URL to file once hosted)

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