Allied Vision S-12-F2.8-5MP-T1-2.5 Manuel de l'utilisateur - Page 12
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IR types and lens position
IR-types
S-Mount lenses in this user guide are offered as IR-optimized and IR cut.
IR-type
IR correction effect
IR-optimized
Some optical elements have an optical coating for use in the visible and NIR
spectrum.
IR cut
An IR cut filter improves color reproduction and focus (visible with monochrome
cameras as well).
Table 5: IR types
IR cut filter spectral transmission
100
90
80
70
60
50
40
30
20
10
0
300
350
Figure 3: IR cut filter spectral transmission
Lens position in tables
Tables for Lens position at infinity show nominal values.
The nominal value for flange focal distance (optical) is 12.63 mm. In tables for Lens
position at infinity (approximately), the value is rounded to 12.6 mm.
S-Mount Lenses User Guide V1.1.0
400
450
500
550
Wavelength [nm]
600
650
700
750
Specifications
800
850
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