KEYENCE
Ultra High-resolution Low-distortion Lens 50 mm
CA-LHR50
Specifications:
Model  | CA-LHR50  | 
Focal point  | 50 mm  | 
F-stop range (aperture)  | F2.8 to F16  | 
Minimum WD  | 0.1 m  | 
Mount  | C-mount  | 
Filter size  | 30.5 mm P0.5  | 
Compatible image/CCD size  | 2/3"  | 
TV distortion  | -0.02 % (0.02 %)*1  | 
Resolving power  | 200 cycles/mm at centre, 140 cycles/mm on periphery  | 
Ambient temperature/humidity range  | 0 to +50°C, 80% RH or less (No condensation)  | 
Lens coating  | WIDE, BAND MULTICOATING  | 
Weight  | Approx. 170 g  | 
*1 Indicates specification for compatible image/CCD size. Value in parenthesis applies to 1/3" image/CCD size.  |