11
Installation Instructions
BACK FOCUS ADJUSTMENT
There are two adjustment points accessible from the top and bottom of the camera housing (7,
figure 1), 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 adjustment lock (8, figure 1).
2. Rotate the backfocus adjustment ring as required. When viewed from the front of the
camera, clockwise adjustment moves the CCD sensor away from the back of the lens;
counter clockwise adjustment moves the CCD sensor towards the back of the lens
3. Lock the back focus mechanism.
INSTALLING FIXED IRIS LENSES
1. Turn the back focus adjustment ring fully clockwise (when viewed from the front)see
Back Focus Adjustment
.
2. Fit the lens to the camera.
3. If the lens has a focussing ring fitted, set it to infinity (
¥
) and then adjust the back focus
see
Back Focus Adjustment
.
4. Ensure the Electronic Iris (EI) and Automatic Gain Control (AGC) features are both turned
ON.
INSTALLING MANUAL IRIS LENSES
1. Turn the back focus adjustment ring fully clockwise (when viewed from the front)see
Back Focus Adjustment
.
2. Fit the lens to the camera.
3. Turn the Electronic Iris (EI) and Automatic Gain Control (AGC) features OFF.
4. If the lens has a focussing ring fitted, set it to infinity (
¥
) and then adjust the back focus
see
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 Electronic Iris (EI) and Automatic Gain Control (AGC) features are both turned
ON.
