Lenses: Focal length vs. field of view
158
Alvium CSI-2 Cameras User Guide V2.6.2
Alvium 1800 C-1236m/c
Values apply to 1800 C-1236m/c
cameras with Type 1.1 (17.6 mm diagonal)
sensors.
Alvium 1800 C-1240m/c
Values apply to 1800 C-1240m/c cameras with Type 1/1.7 (9.33 mm diagonal)
sensors.
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
8
872 × 638
1759 × 1287
12
577 × 422
1168 × 854
16
429 × 314
872 × 638
25
270 × 197
553 × 405
35
188 × 138
391 × 286
50
128 × 93
270 × 197
75
80 × 59
175 × 128
Table 80: Focal length versus field of view for Alvium 1800 C-1236m/c
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm
Object distance = 1000 mm
4.8
763 × 578
1534 × 1161
6
609 × 461
1226 × 928
8
455 × 344
918 × 694
12
301 × 228
609 × 461
16
224 × 169
455 × 344
25
141 × 106
289 ×218
35
98 × 74
204 × 154
50
67 × 50
141 × 106
Table 81: Focal length versus field of view for Alvium 1800 C-1240m/c