Sony CD-9255 - Manual (Page 5)

Platinum CCTV Surveillance Solutions
Camera Installation
2. Use a small screwdriver to adjust the zoom of the
lens. The CD-9255 camera will adjust between
4mm (wide-angle) and approx. 9mm (fixed
zoom).
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