C3425M-E (1/09) 19
To adjust the focus:
1. Loosen the focus locking screw.
2. Position the inverted dome approximately 0.125 inch (3.175 mm) from the front of the lens. Make
sure that the lens and the dome are centered (refer to Figure12).
3. Turn the focus locking screw clockwise or counterclockwise to adjust the focus.
4. When the optimal focus is reached, tighten the focus locking screw
Figure 12. Adjusting the Focus
FOCUS
ZOOM
CENTER BUBBLE
WITH LENS
0.125 INCH (3.175 mm)