Lensation Lens BM4018S118C – 4 mm, 1/1.8″, S-Mount, Fixed Focus
Part Number: BM4018S118C
Product Type: S-Mount Fixed Lens
Resolution Support: Up to 3 Megapixels
Purchase Link: Buy Now at Inosaki
🔍 Product Overview
The BM4018S118C from Lensation’s Lensagon series is a compact S-mount lens optimized for up to 1/1.8″ sensors and resolutions up to 3 megapixels. With a bright F1.8 aperture, ultra-wide 126° diagonal field of view, and fixed focus design, it is ideal for space-constrained imaging applications demanding clarity, speed, and simplicity.
📌 Key Features & Advantages
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Sensor Compatibility: Optimized for 1/1.8″ and 1/2″ sensors
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High Brightness: Large F1.8 aperture ensures excellent low-light performance
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Lightweight Design: Only 20g, ideal for embedded and mobile systems🔩 Fixed Iris & Focus: Reliable performance with no moving parts
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Wide Field of View: Diagonal: 126° / Horizontal: 101° / Vertical: 76°
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Ultra-Wide 4 mm Focal Length for maximum area capture
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Integrated IR-Cut Filter: Enhances visible spectrum image quality
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Industrial-Grade Build: Designed for robust and long-term use
📊 Technical Specifications
| Specification | Detail |
|---|---|
| Mount | S-Mount |
| Focal Length | 4 mm |
| Aperture | F1.8 (fixed) |
| Sensor Support | 1/1.8″ to 1/2″ |
| Resolution | Up to 3 MP |
| Minimum Object Distance (MOD) | 0.2 m |
| Back Focal Length | 8 mm |
| Angle of View (D/H/V) | 126° / 101° / 76° |
| IR Correction | No |
| IR Cut Filter | Yes |
| Weight | 20 g |
| Distortion | -45% (barrel distortion) |
📦 Ideal Use Cases
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Embedded Vision Systems
Ideal for compact modules such as Raspberry Pi-based vision projects or industrial IoT edge devices. -
Automated Inspection Systems
Offers a wide field of view to monitor large surfaces or conveyor systems with minimal blind spots. -
Retail & Kiosk Monitoring
Discreet installation for point-of-sale or self-service machine vision, especially in tight enclosures.