8
2.3 Adjusting the image and focus
To adjust the position of the lens:
1. Open the Live View page in your web browser.
- Select
Setup
tab, and open the
Installation
page.
- Set “Installation Mode” ON and select the “Video Format”.
2. Connect analog monitor to VIDEO OUT on rear panel of camera.
- Unscrew the zoom puller on the lens by turning it anti-clockwise.
Adjust the zoom setting
and re-tighten the zoom puller.
- Unscrew the focus puller on the lens
to adjust the focus, and re-tighten the focus
puller.
3. Check the image in the Live View page
in your web browser,
and
set “Installation Mode” OFF In
Installation
page
in
Setup
tab.
Note:
The DC-Iris should always be disabled while focusing the camera. This opens the iris to its
maximum, which gives the smallest depth of field, thus the best conditions for correct focusing.
When the focus is set with this method, it will then be maintained in any light conditions.
2.4 Back focus adjustment
When the lens is changed to a non-standard lens or when the focus achieved using
the instructions above is not satisfactory, perform back focus adjustment as
follows:
1. Loosen the flange back locking screw that holds the C/CS-mount ring. CS-mount is
standard on GANZ ZN-XXX. In case your lens is C-mount type, please mount C-mount
adaptor ring already given in the box.
2. Direct the camera towards an object at least 3 meters away, set the zoom puller to wide-
end
and adjust back focus by rotating C/CS-mount ring.
3. Set the zoom puller to tele-end and ensure that it is still in focus.
4. Direct the camera towards a close object, about 30cm away,
set the zoom puller to wide-end and
ensure that it is still in focus.
5. Set the zoom puller to tele-end and again ensure that it is still in focus.
6. Tighten the screw that holds the C/CS-ring again.
7. After making the back focus adjustment as explained above, adjust the zoom and focus
position.
