Ganz ZC-Y20PH Gebrauchsanweisung - Seite 7

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7. ABOUT THE LENSES

7.1. Lens (optional) Selection and Camera Setting

When using the flickering-reduction function outdoors or under the fluorescent lighting in the area with the
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power frequency of 50 Hz, use the auto-iris lens. Follow the procedure below to perform the setting:
1. Set the Lens Auto/Manual selector switch of the mode switch ⑥ to "AUTO" position (factory-preset
position).
2. Set the lens selector switch ⑤ to "DC" or "VIDEO" position depending on the type of auto-iris lens to use.
Factory-preset for "DC" position.
3. To reduce flickering, set the flickering-reduction switch of the mode switch to "1/120" position . Factory-
preset for "(1/50)" position.
When using the flickering-reduction function indoors or in locations where the lighting condition does not
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much change, you can use the manual or fixed iris lens by making the following camera settings:
1. Set the Lens Auto/Manual selector switch of the mode switch ⑥ to "MANU" position. Factory-preset for
"AUTO" position.
2. Set the flickering-reduction switch of the mode switch to "(1/50)" position. Factory-preset for "(1/50)"
position.
Notes
When the flickering-reduction switch is set to "1/120" position, the automatic
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sensitivity adjustment function cannot be used even if the Lens Auto/Manual
selector switch of the mode switch is set to "MANU" position. Use the auto-iris
lens.
To avoid damaging the internal sections of the camera's lens mount, be sure
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that the lens flange is less than 5 mm thick as illustrated on the right.
C-mount lenses must be used in conjunction with the Lens Mounting Adapter
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CF-5 (optional).

7.2. Auto-Iris Lens Installation

1. Attach the lens to the camera.
2. Insert the connector from the lens into the lens
connector ③.
3. Set the Lens Auto/Manual selector switch of the
model switch ⑥ to "AUTO" position.
4. Set the lens selector switch ⑤ to DC or VIDEO
position depending on the type of auto-iris lens
to use.
③ Lens connector
LENS
2
1
4
3
⑤ Lens selector switch
VIDEO
DC
Lens selector switch ⑤ position
Lens connector
pin No.
VIDEO
1
Power +9 V
2
−
Video signal
3
Ground
4
Under 5 mm
Lens
③ Lens connector
Connector from the lens
Lens
DC
Damping coil −
Damping coil ＋
Driving coil ＋
Driving coil −
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