Lenses: Focal length vs. field of view
97
Alvium USB Cameras User Guide V3.1.3
Type 2/3 = 11.1 mm diagonal
Values apply to
1800 U-507m/c
cameras.
Type 1/1.8 = 8.9 mm diagonal
Values apply to
1800 U-319m/c
cameras.
Focal length [mm]
Field of view (H × V in mm)
Object distance = 500 mm
Object distance = 1000 mm
6
700 × 584
1408 × 1175
8
523 × 436
1054 × 880
12
346 × 288
700 × 584
16
257 × 215
523 × 436
25
162 × 135
332 × 277
35
113 × 94
234 × 196
50
77 × 64
162 × 135
Table 43: Focal length versus field of view (type 2/3 sensor cameras)
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 44: Focal length versus field of view (type 1/1.8 sensor cameras)
