Mechanical dimensions
171
Prosilica GT Technical Manual V3.2.0
Flange focal distance
Standard and extended cameras
C-Mount
Flange focal distance is the optical distance from the mounting flange to image
sensor die. Prosilica GT standard and extended format cameras with C-Mount are
calibrated to a standard 17.526 mm flange focal distance, with a ±10 µm tolerance.
Adjustment of C-Mount
If for some reason the lens mount requires adjustment, use the following method.
NOTICE
Avoid damage from unsuitable lenses. To protect camera and lens, use lenses only
up to the allowed maximum protrusion, as listed in the following table.
Prosilica GT cameras are shipped with adjustable C-Mount. Cameras can also be
built with a CS-Mount with a standard 12.50 mm flange focal distance and a
±10 µm tolerance. For more information, see the Modular Concept.
Figure 104: Prosilica GT camera and locking wrench
Locking
W
rench
Locking Ring
C-Mount Ring
