Optronis CamRecord CR Series, User Manual

Page: 86 / 89

CR Series Ref. 1830-SU-02-N Page 84
CR5000x2
Full Sensor Resolution
The required focal length of the lens at full sensor resolution (512 x 512
Pixel) is calculated as follows:
A: Distance from lens to object in mm
B: Size of the object in mm
Example:
A: Distance from lens to object = 300 mm
B: Object Size = 100 mm
calculated focal length = (300 : (1 + (100 : 11,58))) = 31 mm
selected focal length = 35 mm
Reduced Sensor Resolution
At reduced sensor resolutions (e.g. 256 horizontal x 256 vertical pixels)
the focal length is calculated as follows:
58 , 11
B
1
A
] mm [ Length Focal
+
=
Object Size