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Alvium USB Cameras User Guide V3.6.4
Lenses: Focal length vs. field of view
Alvium 1800 U-1620m/c
Values for 1800 U-1620m/c
cameras with Type 1.1 (16.8mm diagonal) sensors:
Alvium 1800 U-2040m/c
Values for 1800 U-2040m/c
cameras with Type 1.1 (17.5 mm diagonal) sensors:
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
5
1445 × 825
2905 × 1658
6
1202 × 686
2419 × 1380
8
898 × 512
1810 × 1033
12
594 × 339
1202 × 686
16
442 × 252
898 × 512
25
277 × 158
569 × 325
35
194 × 111
403 × 230
50
131 × 75
277 × 158
75
83 × 47
180 × 103
Table 94: Focal length versus field of view for Alvium 1800 U-1620m/c
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
6
1018 × 1018
2048 × 2048
8
760 × 760
1533 × 1533
12
503 × 503
1018 × 1018
16
374 × 374
760 × 760
25
235 × 235
482 × 482
35
164 × 164
341 × 341
50
111 × 111
235 × 235
75
70 × 70
152 × 152
85
60 × 60
133 × 133
Table 95: Focal length versus field of view for Alvium 1800 U-2040m/c
