Connection / Installation; Mounting The Lens - JVC VN-C20 Instructions Manual

Connection / Installation

Mounting the Lens

1.
Check the mounting method of the lens to
be used before mounting
● The default method used for this camera is
CS mount. To use a C mount lens, loosen the
back focus fastening screw using a
screwdriver, followed by turning the back
focus ring using a finger or pointed object
(e.g., screwdriver, etc.) to change the mount
method.
● Make use of the values listed in the table
below for the dimensions of the lens mount
(a) indicated in the following diagram.
Lens Flange Focus (b)
C Mount 17.526 mm
Lens
CS Mount 12.5 mm
Lens
● Objects longer than the dimension (a) must
not be used as doing so may damage the
camera interior or prevent the lens from being
properly mounted, hence resulting in
malfunctions.
Loosen
Dimension (a)
10 mm and
below
5.5 mm and
below
Back Focus locking
screw (M2.6)
(a)
F
(b)
2.
Turn the lens in the clockwise direction
and mount the camera firmly
3.
When using a DC iris lens, pay attention
to the pin position before connecting the
lens cable
RESET
1
2
4.
Pin Plug
3
1
Pin No.
(Without Built-in EE Amplifier)
1
2
3
4
2.
IRIS
3.
3
4
4
2
DC Iris Lens
Damping (-)
Damping (+)
Driving (+)
Driving (-)
13