Owner's Manual

19
Connections
Concerning Auto-Iris Lenses
DC type auto-iris lens
A lens without driver circuit that operates only on a DC
power source. In general, this type of lens is referred to
as DC type coil lens. (Set the ALC Lens Setting Switch
to the DC position.)
CAUTION:
Depending on the type of lens used, the lens may not
perform properly.
ELC type auto-iris lens
Use a manual or fixed iris lens (Set the ALC Lens
Setting Switch to the ELC position.)
VIDEO type auto-iris lens
A lens with amplifier circuit that operates on video
signal and DC power source. In general, this type of
lens is referred to as EE amplifier type lens. ALC and
LEVEL volume level controls are available on the lens
for iris adjustments. (Set the ALC Lens Setting Switch
to the VIDEO position.)
CAUTION:
Be cautions not to use Auto Iris Lens with over 35 mA.