Dedicated Micros CamVu 720, Руководство по установке и настройке, Страница: 11 / 160

11
Installation Guide
Lenses
Lens Setup Procedures
Back Focus Adjustment
The back focus adjustment is located at the front of the camera and is accessible from either the top or
bottom of the case.
To adjust the back focus:
1. Loosen the two back focus mechanism locking screws (top and bottom of the camera).
2. Turn the back focus ring anti-clockwise (when viewing the front of the camera) until the
CMOS sensor assembly is as far away from the back of the lens as possible.
3. Turn the back focus ring clockwise until focus is achieved.
4. When the back focus adjustment is satisfactory, tighten the locking screws. Do not over-turn
or force the back focus adjustment ring.
Note: Always turn the back focus ring such that during focusing, the CMOS sensor assembly is brought
towards the back of the lens (i.e. clockwise). If the point of best-focus is passed, repeat the back
focus procedure from step 2.
a
b
1
1. Back focus adjustment ring
a. Clockwise
b. Anticlockwise