247Alvium USB Cameras User Guide V4.6.1
Lenses: Focal length vs. field of view
Alvium 1800 U-240m/c
Values for 1800 U-240m/c cameras with Type 1/2.3 (7.9 mm diagonal) sensors:
Alvium 1800 U-291m/c
Values for 1800 U-291m/c cameras with Type 2/3 (10.8 mm diagonal) sensors:
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm Object distance = 1000 mm
4.8 691 × 433 1389 × 871
6 552 × 346 1110 × 696
8 412 × 258 831 × 521
12 272 × 171 552 × 346
16 203 × 127 412 × 258
25 127 × 80 261 × 164
35 89 × 56 185 × 116
50 60 × 38 127 × 80
Table 124: Focal length versus field of view for Alvium 1800 U-240m/c
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm Object distance = 1000 mm
6 644 × 642 1296 × 1293
8 481 × 480 970 × 968
12 318 × 317 644 × 642
16 237 × 236 481 × 480
25 149 × 148 305 × 304
35 104 × 104 216 × 215
50 70 × 70 149 × 148
Table 125: Focal length versus field of view for Alvium 1800 U-291m/c
To Next Page
Loading...
