Manual iris operation by the iris ring of the lens – Canon YJ12X6.5B IRS-A User Manual
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• Manual operation with the focus
ring of the lens:
Turn the focus ring clockwise, as
viewed from the camera, to focus the
lens on a closer object.
Turn it counterclockwise, as viewed
from the camera, to focus the lens
on a farther object.
5-2. FOCUS OPERATION
5-3. IRIS OPERATION
The iris can be operated automatically or manually by changing the position of the iris
operation mode change-over switch.
: Automatic iris operation by signals fed from the TV camera.
: Manual iris operation by the iris ring of the lens.
(A) AUTOMATIC IRIS OPERATION
Slide the iris operation mode change
over switch to the “A” position.
The video level (or the iris) is
automatically adjusted by signals sent
from the camera side.
The iris ring rotates automatically (driven
by a motor in the drive unit) so that the
video signal is kept at a constant level.