Tamron 21HC Prospecto

 

 Machine Vision Lens (f=50mm) 

P/N 

                                  21HC 

CCD size 

                                     2/3” 

Mount 

                                  C mount 

Focal length 

                                   50mm 

Aperture range  

                                   2.8-22                    

Angle of View 

(horizontal x 
vertical) 

2/3” 

                               10.0 x 7.5 

1/2” 

                                 7.3 x 5.5 

1/3” 

                                 5.5 x 4.1 

Focusing range 

                               0.44m-infinity 

Operation 

Focus 

                                Manual w/lock          

Iris 

                                Manual w/lock 

Filter size  

                               M25.5 P=0.5mm 

Back focus (in air) 

                                   22.10mm 

Exit Pupil Position 

                                  -29.52mm 

1

st

 Optical Principal Point 

                                   -3.660mm 

2

nd

 Optical Principal Point 

                                  -27.884mm 

Distance between 1

st

 & 2

nd

 

                                    0.826mm 

Effective  

Diameter 

Front 

                                    17.5mm 

Rear 

                                    10.8mm 

Optical Construction 

                            4 groups / 4 elements 

Distortion 

                                    0.12% 

Overall Length 

                                   25.050mm 

Maximum Diameter 

                                     30.5mm 

Weight 

                                       52g 

Operating Temperature 

                                    -5 + 50C