Vicon IX 2000 L Technical Information Seite 163

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MX Camera Lens Focusing
Vicon MX Hardware System Reference C-7
To adjust camera lens focus through back focus:
1. Mount the camera on a tripod within reach of the host PC on which
the Vicon software is installed.
2. Ensure that you can view the camera data from the Vicon software
on the host PC. For details on doing this, see the documentation
for your Vicon application software.
3. Place a pair of 25 mm retroreflective markers with centers 50 mm
apart central to the camera Field of View and at as great a distance
as possible (up to a maximum of 25 m) from the camera.
4. Ensure that the aperture lock (if there is one) is released and that
the lens aperture is open to its most open setting, that is the
lowest numerical value on the lens aperture ring (shown in Figure
C-1). This lets more light into the camera and minimizes the depth
of field (for details on depth of field, see Chapter 3 MX Cameras).
Figure C-4: Camera manual aperture ring
5. In the Vicon application software, check the image of the markers
from this camera:
In Nexus
a. In the
View pane, click the Camera view type.
b. In the Resources pane, ensure Nexus is in Live mode.
MXhardware_Reference.book Page 7 Monday, April 30, 2007 1:56 PM
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