Maximum Allowed Lens Thread Length - Basler ace acA640-90gm User Manual

1.4.2

Maximum Allowed Lens Thread Length

The C-mount lens mount on all cameras is normally equipped with a plastic filter holder. As shown
in Figure 14, the length of the threads on any lens you use with the camera can be a maximum of
9.6 mm, and the lens can intrude into the camera body a maximum of 10.8 mm. If either of these
limits is exceeded, the lens mount or the filter holder will be damaged or destroyed and the camera
will no longer operate properly.
Note that on color cameras, the filter holder will be populated with an IR-cut filter. On monochrome
cameras, the filter holder will be present, but will not be populated with a filter.
Filter Holder
C-mount Lens C-mount Lens
IR-Cut Filter
(color cameras only)
Thread - 9.6 Max
10.8 Max
Fig. 14: Maximum Lens Thread Length (dimensions in mm)
Basler ace GigE
(11)
(9.6)
Unthreaded
Specifications, Requirements, and Precautions
Not to Scale
17