Owner manual
Camera dimensions
AVT Prosilica GT Technical Manual V2.1.0
52
Optical flange focal distance
Optical flange focal distance is the optical distance from the mounting flange to
image sensor die (see figure 38 and figure 39). Optical flange focal distance can
be calculated as:
C-Mount cross section
Table 21 presents flange focal distance and maximum lens protrusion values for
Prosilica GT cameras with C-Mount.
Figure 38: Cross section of typical Prosilica GT front assembly with C-Mount
Camera Lens protrusion
[mm]
IR cut filter*
[mm]
Sensor window
[mm]
Nominal flange focal
distance [mm]
GT1290 13.64 - 0.50 17.69
GT1290C 9.32 1.0 0.50 18.03
GT1380 13.64 - 0.75 17.78
GT1380C 9.64 1.0 0.75 18.11
GT1600 13.64 - 0.50 17.69
GT1600C 9.32 1.0 0.50 18.03
GT1660 13.64 - 0.76 17.78
GT1660C 9.43 1.0 0.76 18.11
GT1910 13.64 - 0.76 17.78
Table 21: Flange focal distance and maximum lens protrusion for Prosilica GT cameras with C-Mount
Optical flange focal distance Flange focal distance
IR cut filter thickness Sensor window thickness+
3
-------------------------------------------------------------------------------------------------------------
–
Sensor window thickness
Flange focal distance
Max. lens protrusionMax. lens protrusion
Section A-A
Image sensor die
IR cut lter thickness