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Changing The Reference Value For Automatic Iris Adjustment - Sony PDW-680 Operation Manual

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Changing the Reference
Value for Automatic Iris
Adjustment
The reference value for automatic iris adjustment
can be changed to aid the shooting of clear
pictures of back-lit subjects, or to prevent blown-
out highlights. The reference value for the lens
iris can be set within the following range with
respect to the standard value.
• 0.25 to 1 (increasing by increments of 0.25):
About 0.25 to 1 stop further open
• –0.25 to –1 (decreasing by increments of 0.25):
About 0.25 to 1 stop further close
Also you can set the area where light detection
occurs.
To change the reference value
(How to select an item in the menu screen: Turn
the MENU knob to move b to the desired item.)
1
Display the AUTO IRIS page of the
OPERATION menu, and press the
MENU knob.
For details on menu operations, see "Basic
menu operations" on page 189.
016 AUTO IRIS
2
Check that the b mark is at the IRIS
OVERRIDE position, and then press
the MENU knob.
b on the left of the selected item changes to
z and z on the left of the setting changes to
?.
3
Turn the MENU knob until "ON"
appears, then press the MENU knob.
z on the left of the selected item changes to
b and ? on the left of the setting changes to
z.
The IRIS OVERRIDE item is set to "ON".
62

Changing the Reference Value for Automatic Iris Adjustment

4
Set the MENU ON/OFF switch to OFF.
The AUTO IRIS page disappears from the
screen.
5
Turn the MENU knob to change the
reference value.
Note
Be sure to confirm that the current shutter mode is
not ECS.
The changed reference value is retained until
the power of the camcorder is turned off.
Even if the reference value is changed, it
reverts to the standard value every time the
power is turned on.
To make the iris more open
Turn the MENU knob counterclockwise as
seen from the front of the camera.
The iris stop indicators as shown in the
following table appear in the upper part to the
left of the F number in the iris indication.
Iris stop
0.25
0.5
0.75
1
To stop down the iris
Turn the MENU knob clockwise as seen
from the front of the camera.
The iris stop indicators as shown in the
following table appear in the lower part to the
left of the F number in the iris indication.
Iris stop
–0.25
–0.5
–0.75
–1
Indicator
Indicator

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