Sony CD-9255 - Manual (Page 6)

Platinum CCTV Surveillance Solutions
Camera Installation
3. Next, remove the weatherproof cap for the focus
adjustment..
4. Then use a small standard screwdriver to adjust
the focus of the camera.
When making Zoom and Focus adjustments,
STOP when there is a slight resistance.
Forcing the camera’s adjustment will void
the warranty and damage the camera