Sony HDW-790, Руководство по эксплуатации

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63
Setting the Electronic Shutter
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• Whatever the operating mode of the electronic shutter,
the sensitivity of the CCD decreases with increasing
shutter speed.
• When automatic iris is used, the iris opens wider as the
shutter speed increases, as a result reducing the depth of
field.
• Under artificial light, particularly fluorescent or mercury
lamps, the light intensity may appear to be constant, but
the red, green, and blue intensities are actually changing
in synchronization with the frequency of the power
supply, causing flicker. Using an electronic shutter under
such lighting could make the flicker even worse. Color
flicker is particularly likely to happen when the power
supply frequency is 60 Hz. However, if the power
frequency is 50 Hz, setting the shutter speed to 1/100 can
reduce this flicker.
• When a bright object is shot in EVS mode or ECS mode
in such a manner that it fills the screen, the upper edge of
the picture may have poor quality because of an inherent
characteristic of CCDs. Before using EVS mode or ECS
mode, check the shooting conditions.
• The EVS mode is not effective for 25PsF format.
You can turn the EVS mode on or off on the SW STATUS
page of the PAINT menu (page 151).
4-2-2 Selecting the Shutter Mode
and Shutter Speed
Use the SHUTTER selector to select a shutter mode or a
standard-mode shutter speed. To set the shutter speed in
ECS or SLS mode, with the SHUTTER selector set to ON
and the ECS or SLS
1)
mode selected, use the MENU knob
for adjustment.
You can use the SHT ENABLE page of the OPERATION
menu to narrow the range of choice in advance, or to select
in advance whether or not you use the ECS mode.
For details, see “Changing the range of choice of shutter
mode and speed settings” on page 65.
1) The SLS mode is effective only when an optional HKDW-905R is
installed.
Setting the shutter mode and the shutter
speed in standard mode
Once the shutter speed is selected, it is retained even when
the camcorder power is turned off.
1
Follow the procedure described in “5-2-2 Selecting
Display Items” (page 84) to set the VF DISP MODE
item to “2” or “3” on the VF DISP 1 page of the USER
menu.
2
Push the SHUTTER selector from ON to SELECT.
The current shutter setting indication appears for about
3 seconds in the viewfinder screen.
Examples: “: SS : 1/250,” “: ECS : 60.00 Hz”
3
Before the shutter setting indication disappears, push
the SHUTTER selector down to SELECT again and
repeat this until the desired mode or speed appears.
Pushing the SHUTTER selector down to SELECT
repeatedly allows you to cycle through the settings of
mode and speed preselected on the SHT ENABLE
page of the OPERATION menu.
Note that all modes and all standard-mode speeds
listed in the table on the previous page are preselected
using the SHT ENABLE page of the OPERATION
menu.
By factory default, all available shutter modes and
shutter speeds are displayed in the sequence shown in
the following figure. (You can use the SHT ENABLE
page of the OPERATION menu to make a setting so
that only the desired – or most frequently used – modes
and speeds are displayed.)
Notes
SHUTTER selector
Standard mode
1)
ECS mode
1) These shutter speeds in the standard mode are available for 59.94i
format.
2) The SLS mode appears only when an optional HKDW-905R is
installed in the camcorder.
SLS mode
2)