Sony HDW-790, Руководство по эксплуатации

Страница: 67 / 176

67
Changing the Reference Value for Automatic Iris Adjustment
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To close the iris by 0.75 stop:
Turn the MENU knob clockwise as seen from the front
of the camera.
Two bars (
sx
) appear in the lower part to the left of
the F number in the iris indication.
To close the iris by 1 stop:
Turn the MENU knob clockwise as seen from the front
of the camera.
Two bars (
xx
) appear in the lower part to the left of
the F number in the iris indication.
When an optional RM-B150/B750 Remote Control
Unit is connected
The IRIS control knob of the RM-B150/B750 can be used
for lens iris setting. In this case, the bar display (
s ) does
not appear.
Selecting the automatic iris window
1
Follow steps 1 and 2 in “Changing the reference
value” (page 66) to display the AUTO IRIS page.
2
Turn the MENU knob to move the
b
mark to IRIS
WINDOW IND, then push the MENU knob.
The
b
mark on the left of IRIS WINDOW IND
changes to a z mark, and the z mark on the left of the
setting changes to a ? mark.
3
Turn the MENU knob until ON appears, then push the
MENU knob.
The z mark returns to a
b
mark, and the ? mark
returns to a z mark.
The currently selected auto iris window appears on the
screen.
If it is not necessary to display the auto iris window on
the viewfinder screen, set it to “OFF.”
4
Turn the MENU knob to move the
b
mark to IRIS
WINDOW, then push the MENU knob.
The
b
mark changes to a
z
mark, and the
z
mark
changes to a ? mark.
5
Turn the MENU knob until the desired auto iris
window appears, then push the MENU knob.
Auto iris window
The z mark returns to a
b
mark and the ? mark returns
to a z mark.
If you select “VAR,” the following items become
effective and you can set the window to the desired
size. Set each item to the desired size.
6
Set the MENU ON/OFF switch to OFF.
The menu display disappears from the viewfinder
screen and the display indicating the current status of
the camcorder appears along the top and bottom of the
screen.
Countering problems with very bright
highlights
If the subject is too bright, the iris may close too much,
leaving the overall image dark, or the highlights may be
blown out. In such cases, setting the highlight clip function
to ON reduces the luminance range, avoiding problems
from the automatic iris correction.
In the AUTO IRIS page of the USER menu, set the CLIP
HIGH LIGHT item to ON.
Opening the lens iris
Iris opened by 0.25 stop
Iris opened by 0.5 stop
Iris opened by 0.75 stop
Iris opened by 1 stop
Closing the lens iris
Iris closed by 0.25 stop
Iris closed by 0.5 stop
Iris closed by 0.75 stop
Iris closed by 1 stop
Item Setting
IRIS VAR WIDTH The width of the window
IRIS VAR HEIGHT The height of the window
IRIS VAR H POS. The position of the window in the
horizontal direction
IRIS VAR V POS. The position of the window in the
vertical direction
The shaded parts indicate the area where light detection occurs.