Lenses: Focal length vs. field of view
107
Alvium G1 User Guide V1.1.1
About S-Mount lenses
Alvium G1 S-Mount models have no filter. We recommend using S-Mount lenses
with an integrated IR-cut filter for a better image quality.
Read
Mounting and focusing S-Mount lenses
on page 120 to avoid damage when
using S-Mount lenses.
Focal length versus field of view
Alvium G1-040m/c
Values for G1-040m/c cameras with Type 1/2.9 (6.3 mm diagonal) sensors:
Focal length [mm]
Field of view (H × V [mm])
Object distance = 500 mm
Object distance = 1000 mm
2.8
892 × 667
1789 × 1337
3.6
693 × 518
1390 × 1039
4.8
518 × 387
1041 × 778
6
414 × 309
832 × 622
8
309 × 231
623 × 465
12
204 × 153
414 × 309
16
152 × 114
309 × 231
25
95 × 71
196 × 146
Table 53: Focal length versus field of view for Alvium G1-040m/c