Lens Setup and Focus Procedures
VIDEO DRIVE AUTO IRIS LENS
1.Set the lens mode selector switch to AIV.
2.Switch the electronic shutter control (ESC) and automatic gain control (AGC) OFF.
3.Refer to the lens instructions and adjust the lens for the optimum picture (video output level of 1
4.Focus the lens.
a.Completely open the iris by covering the lens with a suitable neutral density ND filter.
b.If the viewed scene is 6.5 ft (2 m) away or farther, set the lens focus to infinity (far).
c.Use the back focus adjustment ring (refer to Back Focus Adjustment on page 15) and focus on the selected scene.
d.Remove the ND filter and set the lens focus as required.
5.Set the AGC switch to ON, as required. Most scenes benefit from AGC.
NOTE: For best results outdoors, use an ND3 filter.
DIRECT DRIVE DC AUTO IRIS LENS
1.Set the lens mode selector switch to AID (default setting).
2.Set the ESC and AGC switches to OFF.
3.Use an appropriate screwdriver to completely turn the lens level potentiometer clockwise. Slowly adjust the potentiometer counterclockwise until the optimum picture is obtained (video output level of 1
4.Focus the lens.
a.Completely open the iris by covering the lens with a suitable ND filter.
b.Select the scene to be viewed.
c.If the viewed scene is 6.5 ft (2 m) away or more, set the lens focus to infinity (far).
d.Use the back focus adjustment ring (refer to Back Focus Adjustment on page 15) and focus on the selected scene.
e.Remove the ND filter and set the lens focus as required.
5.When finished, set the ESC and AGC switches to ON.
NOTE: For best results outdoors, use an ND3 filter.
FIXED LENS, NO IRIS
1.Set the ESC and AGC switches to ON (default settings).
2.Focus the lens.
a.Set the lens focus to infinity and view an image more than 6.5 ft (2 m) away.
b.Focus the image with the back focus adjustment ring (refer to Back Focus Adjustment on page 15).
c.Set the lens focus as required.
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