JVC GY-DV550U Camcorder User Manual


 
13
2. CONTROLS, INDICATORS AND CONNECTORS
CAUTION:
AUTO KNEE function
When shooting a foreground subject, such as a human
being, etc., with a high-brightness background, if the
brightness level is set for the foreground subject, the
background image will be blurred with white. In such a case,
a clearer background is obtained when the auto knee
function is used.
It is effective especially in the following cases:
When shooting a human being indoors with a view to the
landscape out through a window.
When shooting a human being in the shade on a fine
day.
When shooting a high-contrast scene.
If a fast moving high-brightness section like a car in
sunlight is shot, the auto knee function may change
the brightness of the entire image along with the motion
of the object. In this case, set the auto knee function to
OFF.
@
[WHT.BAL] White balance switch
Three white balance modes are selectable with this switch.
B : If white balance is performed with the
switch in this position, it will be
memorised into B.
A : If white balance is performed with the
switch in this position, it will be
memorised into A.
PRST (PRESET) : A non-erasable white balance setting at
3200K.
FAW (Full-time Auto White) mode can be set to A, B or
PRESET with the OPERATION MENU (see page 79).
In the FAW mode, video color temperatures are constantly
sampled for automatic adjustment to a proper white
balance.
#
[NG] button
Pressing this button while recording or in the record-pause
mode deletes the S.S.F. data stored in the memory of the
GY-DV550 with the S.S.F. (Super Scene Finder) function.
This function is only valid in the MARK mode.
See S.S.F. (Super Scene Finder) FUNCTION on page
68.
$
[OPERATE] switch
Turn the power ON and OFF with this switch.
When this switch set to ON while a videocassette is
loaded, the GY-DV550 status differs depending on the
setting of the VTR (SAVE/STBY) switch 0.
The iris is placed in automatic mode even if the iris
mode switch of the lens is in manual.
The gain will vary continuously to the maximum of
+12 dB. The shutter speed will vary continuously to
the minimum of 1/240 of a second.
See "Full Auto Shooting (FAS) function" on page
90.
8
[AUTO IRIS] Auto iris level switch
This switch selects the automatic iris adjustment
reference value according to the condition in which the
camera is used.
BACK L : Under back light (Opens the iris more than
the standard level. The level of iris can be
set in SPOT L/BACK L of the OPERATION
MENU screen.) See page 79
NORMAL: Normal condition
SPOT L : Under spotlight (Closes the iris more than
the standard level. The level of iris can be
set in SPOT L/BACK L of the OPERATION
MENU screen.) See page 79
See "SWITCH FUNCTIONS" on page 90.
9
[GAIN] switch
Electronically boosts the light sensitivity when there is
insufficient illumination on the subject. The boosting
level differs depending on the switch position as follows:
(Factory presets)
L : 0 dB (no boosting is applied)
M : 9 dB (boosted to approximately 3 times the original)
H :
18 dB (boosted to approximately 8 times the original)
The boosting level for each switch position can be
changed with the OPERATION menu screen. (See
page 79.)
The more the boosting level is increased, the more the
resulting image will be noisy.
0
[VTR SAVE/STBY] switch
Used to select the status of the GY-DV550 when the
power is turned ON and a videocassette is loaded.
STBY: The GY-DV550 is in the standby mode.
When a recordable videocassette is loaded, the
GY-DV550 enters the record-pause mode.
SAVE: The GY-DV550 is in the save mode.
The status of the GY-DV550 is displayed on the Status
screen 1 in the viewfinder.
!
[OUTPUT] Color bar/Camera/Auto knee switch
This switch is used to select the output signal. When
the video signal from the shooting camera is selected,
the auto knee function is available.
CAM. AUTO KNEE ON:
Outputs the video signal from the shooting
camera. In this case mode, the auto knee
function is available.
CAM. AUTO KNEE OFF:
Outputs the video signal from the shooting
camera. In this mode, the auto knee function is
not available.
BARS. AUTO KNEE OFF:
Outputs the color bar signal. In this mode, the
auto knee function is not available. Set to this
position when adjusting the video monitor or
when recording the color bar signal.
When the AUTO KNEE function is OFF, the point
where the KNEE function takes effect (knee point)
can be set using KNEE POINT in PROCESS MENU
screen. See page 80
2-2 Right Side Section [Contd]