250Alvium USB Cameras User Guide V4.6.1
Lenses: Focal length vs. field of view
Alvium 1800 U-510m/c, -511m/c
Values for 1800 U-510m/c and -511m/c cameras with Type 1/1.8
(8.8 mm diagonal) sensors:
Alvium 1800 U-530 VSWIR
Values for 1800 U-530 VSWIR cameras with Type 1/1.4
(11.4 mm diagonal) sensors:
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm Object distance = 1000 mm
5 671 × 560 1348 × 1125
6 558 × 466 1122 × 937
8 417 × 348 840 × 701
12 275 × 230 558 × 466
16 205 × 171 417 × 348
25 129 × 107 264 × 221
35 90 × 75 187 × 156
50 61 × 51 129 × 107
Table 130: Focal length versus field of view for Alvium 1800 U-510 m/c, -511m/c
Focal length [mm]
Field of view (H × V in [mm])
Object distance = 500 mm Object distance = 1000 mm
6 736 × 584 1481 × 1175
8 550 × 436 1109 × 880
12 364 × 288 736 × 584
16 271 × 215 550 × 436
25 170 × 135 349 × 277
35 119 × 94 247 × 196
50 80 × 64 170 × 135
75 51 × 40 110 × 87
Table 131: Focal length versus field of view for Alvium 1800 U-530 VSWIR
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