Kowa LM35EC-IR | 1.2" 35mm IR-Corrected Fixed Lens, 24MP, C-Mount, 2.5µm Pixel, Visible to NIR (400–1000nm)
The Kowa LM35EC-IR is a precision-engineered fixed focal length lens designed for large-format imaging applications requiring both high resolution and infrared (IR) performance. Built for compatibility with 1.2" (19.2mm diagonal) sensors and up to 24MP resolution, this 35mm C-Mount lens supports pixel sizes down to 2.5µm, making it ideal for modern high-density CMOS sensors. With IR-corrected optics, it maintains excellent focus and transmission across the 400nm to 1000nm spectrum—perfect for both visible and near-infrared imaging.
This lens delivers crisp imagery with 200 lp/mm resolution at center, -0.30% distortion, and versatile field coverage at working distances. The manual focus system allows precise adjustment across a 0.5m to infinity focus range, while interchangeable fixed aperture plates (F2.4–F8) let users tailor light intake to their environment. Compact (Ø33mm x 50.4mm) and lightweight (80g), the LM35EC-IR is well-suited for traffic analytics, machine vision, license plate recognition, geo-mapping, and industrial automation, even in challenging temperature ranges from -10°C to +50°C.
Features:
- 35mm fixed focal length
- Supports 1.2" (19.2mm dia.) image sensors
- 24MP resolution support
- IR-corrected for visible to NIR (400–1000nm)
- 2.5µm pixel compatibility
- Manual focus with 0.5m–∞ range
- Fixed aperture options: F2.4, F2.8, F4, F5.6, F8
- Low distortion: -0.30%
- 200 lp/mm resolution (center)
- Lightweight and compact: Ø33mm x 50.4mm, 80g
- C-Mount design
- Wide operating temperature: -10°C to +50°C
Applications:
- Intelligent traffic systems (ITS)
- License plate recognition (LPR/ANPR)
- Machine vision inspection
- Aerial and geo-mapping
- Day/night surveillance
- Industrial automation imaging
- High-resolution scientific imaging
| Focal Length | 35mm |
| Mount | C-Mount |
| Sensor Size | 1.2" (19.2mm Diameter) |
| Resolution | 24 Megapixels |
| Pixel Size Compatibility | 2.5µm |
| IR Correction | Yes (400nm – 1000nm) |
| Aperture (F-Stop) | F2.4 / F2.8 / F4 / F5.6 / F8 (Fixed) |
| Focus Control | Manual |
| Focus Range | 0.5m – ∞ |
| Back Focus in Air | 14.72mm |
| Field of View at Min Distance (H × V) | 222.0mm × 165.0mm |
| Resolution (Center) | 200 lp/mm |
| Resolution (Edge) | 125 lp/mm |
| TV Distortion | -0.30% |
| Filter Thread | M30.5 x P0.5 |
| Wavelength Range | 400nm – 1000nm (Visible to NIR) |
| Operating Temperature | -10°C to +50°C |
| Size (Diameter × Length) | Ø33mm × 50.4mm |
| Weight | 80g |
