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Pelco Manual C2913M-F (08/05) [ 13 ]
CAMERA SETUP
Lens Setup and Focus Procedures
Video Drive or Direct Drive (DC) Auto Iris Lens
1. Set the ESC switch and AGC switch to OFF.
2. Adjust the lens for the optimum picture.
Video Drive. Refer to the lens instructions and adjust the lens for the optimum picture (video output
level of 1 V peak-to-peak).
Direct Drive. Use an appropriate screwdriver to turn the lens level potentiometer (refer to Figure 1) fully
clockwise. Next, slowly adjust the potentiometer counterclockwise until the optimum picture is obtained
(video output level of 1 V peak-to-peak).
3. Set the AGC switch to ON.
4. To focus, fully open the iris by covering the lens with a suitable neutral density (ND*) filter.
5. Select the scene to be viewed.
6. If the viewed scene is 6.5 feet (2 m) away or farther, set the lens focus to infinity (far).
7. Use the back focus adjustment ring (refer to the Back Focus Adjustment section) and focus on the
selected scene.
8. Remove the ND filter and set the lens focus as required.
Fixed Lens
1. Set the ESC switch and AGC switch to ON.
2. To focus, set the lens focus to infinity (far) and view an image greater than 6.5 feet (2 m) away.
3. Focus the image with the back focus adjustment ring (refer to the Back Focus Adjustment section).
4. Set the lens focus as required.
Manual Iris Lens
1. Set the ESC switch and AGC switch to OFF.
2. To focus, open the iris fully and set the lens focus to infinity.
3. View an image greater than 6.5 feet (2 m) away.
4. Focus the image with the back focus adjustment ring (refer to the Back Focus Adjustment section).
5. Adjust the lens focus and set the iris for the best picture quality. The largest aperture gives the best light
sensitivity, the smallest aperture the greatest depth of field.
6. Set the ESC switch and AGC switch to ON.
Zoom Lens
1. Set the lens focus to infinity (far) and fully open the iris by covering the lens with a suitable neutral
density (ND*) filter.
2. Zoom out to the widest field of vision and view a distant object.
3. Adjust the back focus adjustment ring until the object is in focus (refer to the Back Focus Adjustment
section).
4. Next zoom fully in and adjust the lens focus until the object is again focused.
Repeat these steps until the full zoom range may be viewed with the minimum loss of focus.
Figure 7. AGC and ESC Switch Settings
(White indicates switch position.)
*NOTE: For best results outdoors use an ND3 (neutral density) filter.