Product Description
50mm F/2.0 Machine Vision Lens
The Kowa LM50JC is a fixed focal length lens designed for machine visions applications.  Features includes locking screws for aperture and focus ring, a C-mount, and a minimum object distance of 0.50 meters.  The JC lens series have low excellent resolution, and with models featuring focal lengths  from 6mm to 100mm, can be used in a wide variety of applications.

Feature:Specification:
| Focal Length |
50mm |
| Focal Length Sort Order |
50 |
| Lens Type |
Fixed Focal Length |
| Image Size |
2/3" (8.8 x 6.6 x 11mm) |
| Iris Range (F-Stop) |
F2.0 - 22 |
| Angle of View 1/2" (Hor. x Ver. x Dia.) |
10.5 x 7.9 x 13.1° |
| Angle of View 1/1.8" (Hor. x Ver. x Dia.) |
11.8 x 8.8 x 14.7° |
| Angle of View 2/3" (Hor. x Ver. x Dia.) |
14.4 x 10.8 x 17.9° |
| TV Distortion |
-0.10% |
| Minimum Object Focus Distance (1/2") (Hor. x Ver. x Dia.) |
55.1 x 41.3 x 69.0mm |
| Minimum Object Focus Distance (1/1.8") (Hor. x Ver. x Dia.) |
62.1 x 46.5 x 77.7mm |
| Minimum Object Focus Distance (2/3") (Hor. x Ver. x Dia.) |
76.0 x 56.9 x 95.3mm |
| Focusing Range |
0.5m |
| Flange Back |
17.526mm in air |
| Back Focus |
17.2mm in air |
| Filter Thread Size |
M30.5x0.5 |
| Front/Rear Effective Diameter |
Front Φ24.6mm / Rear Φ15.4mm |
| Mount |
C-mount |
| Exit Pupil Location |
-39.5mm |
| Temperature Range |
-10°C ~ +50°C |
| Storage Temperature Range |
-20°C ~ +60°C |
| Resolution: Center/Corner |
Center 100lp/mm / Corner 40lp/mm |
| Weight |
90g |
Original specifications posted on
http://lenses.kowa-usa.com Visit Kowa's website for more information.