Kowa LM25HC 1″ 25mm F1.4 Manual Iris C-Mount Lens, 2 Megapixel Rated
Security and Factory Automation Lenses
Kowa : LM25HC
Description
The Kowa LM25HC1″ megapixel lens is a high performance, compact lens with excellent corner brightness and low distortion. Kowa’s lineup of megapixel lenses is designed for 1″ megapixel cameras. 1″ megapixel LM25HC lenses have low distortion, excellent light transmission, and can be used with smaller format size cameras.
Excellent Corner Brightness
No fading along edges of the image
Perfect for Large Format 1″ Megapixel Applications
Assists the megapixel camera in producing large, high resolution images
Low Distortion
Kowa’s design solves distortion issues to create an accurate reproduction of the environment
High Performance and Compact
This high performance lens is optimal for a wide range of applications
Specifications
Specifications for the LM25HC
| Focal Length | 25mm |
|---|---|
| Focal Length Sort Order | 025 |
| Lens Type | Fixed Focal Length |
| Image Size | 1" (12.8 x 9.6 x 16mm) |
| Iris Range (F-Stop) | F1.4 - 16 |
| Angle of View 1/1.8" (Hor. x Ver. x Dia.) | 16.5 x 12.4 x 20.6° |
| Angle of View 2/3" (Hor. x Ver. x Dia.) | 20.2 x 15.1 x 25.2° |
| Angle of View 1" (Hor. x Ver. x Dia.) | 29.3 x 22.0 x 36.6° |
| TV Distortion | -1.0% |
| Minimum Object Focus Distance (1/1.8") (Hor. x Ver. x Dia.) | 88.9 x 66.5 x 111.7mm |
| Minimum Object Focus Distance (2/3") (Hor. x Ver. x Dia.) | 109.1 x 81.4 x 137.4mm |
| Minimum Object Focus Distance (1") (Hor. x Ver. x Dia.) | 160.7 x 119.2 x 204.3mm |
| Focusing Range | 0.3m |
| Flange Back | 17.526mm in air |
| Back Focus | 16.5mm in air |
| Filter Thread Size | M35.5x0.5 |
| Front/Rear Effective Diameter | Front Φ21.0mm / Rear Φ19.4mm |
| Mount | C-mount |
| Exit Pupil Location | -57.9mm |
| Temperature Range | -10°C ~ +50°C |
| Storage Temperature Range | -20°C ~ +60°C |
| Resolution: Center/Corner | Center 100lp/mm / Corner 80lp/mm |
| Weight | 135g |
Resources & Documents
| lm25hc.pdf | LM25HC Data Sheet |
| lm25hc_distortion.pdf | Field Curvature / F-Tan(Theta) Distortion |
| lm25hc_mtf.pdf | Polychromatic Diffraction MTF |
| lm25hc_relative_illumination.pdf | Relative Illumination |
| lm25hc_transmission.pdf | LM25HC Transmission |