14
i3-TRNG-CAMS-
Di721/Do721
.indd
Rev.
130130
4.3 Adjusting the Lens
1. Loosen the focus lever (#4 on Fig. 3.8) counter-clockwise a little and adjust for
optimum picture sharpness.
2. Loosen the zoom lever (#5 on Fig. 3.8) counter-clockwise a little and rotate to
determine the image view.
3. Re-tighten the zoom lever and focus lever after adjustment.
Please note:
It is important that you lock the zoom and focus levers after
making adjustments. This will avoid the positions moving (for example, from
temperature changes or vibrations).
4. Once all adjustments are done, attach and secure the camera housing:
a. Use a soft and lint-free cloth to wipe the dome cover and remove
fingerprints.
b. Attach the inner liner (#3) to the tilt adjustment bracket (#2). Push down
until it clicks into place.
(Not applicable to IR models)
c. Assemble the dome cover (#4) and the camera base (#1).
1
2
3
4
Figure 3.9 Adjusting the lens
