About the lenses – Toa C-CC354A PAL User Manual
Page 7

7
7. ABOUT THE LENSES
7.1. Lens (optional) Selection and Camera Setting
•
When using the flickering-reduction function outdoors or under the fluorescent lighting, 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 "1/100" position
(NTSC.version), "1/120" position (PAL version).
•
When using the flickering-reduction function indoors or in locations where the lighting condition does not
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 "(1/60)" (NTSC version) position,"(1/50)" (PAL
version) position.
Notes
•
When the flickering-reduction switch is set to "1/100" ("1/120") position, the
automatic 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
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
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.
Lens
Under 5 mm
LENS
Lens connector
Lens selector switch
Lens selector switch position
1
3
2
4
VIDEO
DC
Damping coil
Power +9 V
Video signal
Ground
DC
VIDEO
Damping coil
Driving coil
Driving coil
Lens connector
pin No.
1
2
3
4
3
5
5
–
+
–
+
–
Connector from the lens
Lens connector
3