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CONCERNING AUTO-IRIS LENSES
DC type auto-iris lens
A lens without amplifier circuit that operates only on a DC power source. In general, this type of lens is
referred to as DC type coil lens or DC type non-amplifier lens.
(Set the A.I. LENS switch to the DC 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 A.I. LENS switch to the VIDEO position.)
Compatible auto-iris lenses
1/3 inch Sanyo DC type lens VIDEO type lens
VCL-CS8LY: Standard angle, f= 8 mm Standard angle, f= 9 mm
VCL-CS4LY: Wide angle, f= 4 mm Telephoto angle, f= 12 mm
VCL-CS2LY: Ultra-wide angle, f= 2.8 mm Greater telephoto angle, f= 16 mm
If using a VIDEO type auto-iris lens
• Set the ALC and LEVEL controls on the lens to adjust the iris. Normally the ALC volume should be turned
all the way to Av (Average).
• Depending on the type of lens used, the lens may not perform properly. In such a case, adjust the LEVEL
volume on the lens casing to correct.
DC
VIDEO
A. I.
LENS
VR301
L53H4/US (VCC-6594) GB 2001, 11, 9
English 7