177
Alvium USB Cameras User Guide V3.6.4
Lenses: Focal length vs. field of view
Alvium 1800 U-319m/c
Values for 1800 U-319m/c cameras with Type 1/1.8 (8.9 mm diagonal) sensors:
Alvium 1800 U-500m/c, 1800 U-501m/c NIR
Values for 1800 U-500m/c and 1800 U-501m/c NIR cameras with Type 1/2.5
(7.1 mm diagonal) sensors:
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
4.8
735 × 550
1476 × 1104
6
586 × 439
1180 × 882
8
438 × 328
883 × 661
12
290 × 217
586 × 439
16
215 × 161
438 × 328
25
135 × 101
278 × 208
35
95 × 71
196 × 147
50
64 × 48
135 × 101
Table 86: Focal length versus field of view for Alvium 1800 U-319m/c
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
2.8
1013 × 759
2031 × 1523
3.6
786 × 590
1578 × 1184
4.8
588 × 441
1182 × 887
6
469 × 352
945 × 709
8
351 × 263
707 × 530
12
232 × 174
469 × 352
16
172 × 129
351 × 263
25
108 × 81
222 × 167
Table 87: Focal length versus field of view for Alvium 1800 U-500m/c and
1800 U-501m/c NIR
