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Alvium USB Cameras User Guide V3.6.4
Lenses: Focal length vs. field of view
Alvium 1800 U-507m/c, 1800 U-508m/c
Values for 1800 U-507m/c and 1800 U-508m/c cameras Type 2/3
(11.1 mm diagonal) sensors:
Alvium 1800 U-511m/c
Values for 1800 U-511m/c cameras with Type 1/1.8 (8.8 mm diagonal) sensors:
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 88: Focal length versus field of view for Alvium 1800 U-507m/c and
1800 U-508m/c
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 89: Focal length versus field of view for Alvium 1800 U-511m/c
