8
Fixed Color Cameras
Installation Manual
BACK FOCUS ADJUSTMENT
There are two adjustment points accessible from the top and bottom of the camera housing that
are used to adjust the back focal length or picture focus. The range of adjustment allows both
C and CS mount lenses to be used without the need for a spacer ring. To use the back focus
mechanism:
1. Unlock the back focus mechanism using the back focus locking screws on the top and
bottom of the camera.
2. Rotate the backfocus adjustment ring as required. When viewed from the front of the
camera, clockwise adjustment moves the CCD sensor towards the back of the lens;
counterclockwise adjustment moves the CCD sensor away from the back of the lens.
3. Lock the back focus mechanism.
BACK FOCUS
LOCKING SCREW
BACK FOCUS
ADJUSTMENT
RING
INSTALLING FIXED IRIS LENSES
1. Turn the back focus adjustment ring fully counterclockwise (when viewed from the front)
see
Back Focus Adjustment
.
2. Fit the lens to the camera.
3. If the lens has a focusing ring fitted, set it to infinity (
¥
) and then adjust the back focussee
Back Focus Adjustment
.
4. Ensure the Automatic Electronic Shutter (AES) and Automatic Gain Control (AGC) features
are both turned ON.
INSTALLING MANUAL IRIS LENSES
1. Turn the back focus adjustment ring fully counterclockwise (when viewed from the front)
see
Back Focus Adjustment
.
2. Fit the lens to the camera.
3. Turn the Automatic Electronic Shutter (AES) and Automatic Gain Control (AGC) features
OFF.
4. If the lens has a focusing ring fitted, set it to infinity (
¥
) and then adjust the back focussee
Back Focus Adjustment
.
5. With typical scene illumination, set the lens iris for the correct exposure. This can be
achieved either visually, or by using an oscilloscope to set the output of the camera to 1V
peak-peak.
6. Ensure the Automatic Electronic Shutter (AES) and Automatic Gain Control (AGC) features
are both turned ON.
