Sony DVW-970/970P User Manual

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57
Setting the Electronic Shutter
  
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frames (1/2 sec for the DVW-970, 2/3 sec for the DVW-
970P).
EVS (Enhanced Vertical definition System) mode
This mode is used to improved vertical resolution. 
However, the sensitivity and dynamic range are reduced.
The shutter speed is set to the same value as that currently 
selected in Standard or ECS mode.
• Whatever the operating mode of the electronic shutter, 
the sensitivity of the CCD decreases with increasing 
shutter speed.
• When the automatic iris is used, the iris opens wider as 
the shutter speed increases, thus 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 (with the DVW-970) or 50 Hz 
(with the DVW-970P). However, if the power frequency 
is 50 Hz (with the DVW-970) or 60 Hz (with the DVW-
970P), setting the shutter speed to 1/100 or 1/60 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.
You can turn on or off the EVS mode on the SW STATUS 
page of the PAINT menu.
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 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 ECS/SLS.
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 the 
Display Items” (page 76)
 to set the VF DISPLAY 
MODE item to “2” or “3” on the VF DISP 1 page of 
the USER menu.
2
Push the SHUTTER selector from ON to SEL.
The current shutter setting indication appears for about 
3 seconds in the setting change and adjustment 
progress message display area of 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
ECS mode
1/100: for the DVW-970
1/60: for the DVW-970P
SLS mode