JVC GY-DV550U instruction manual Right Side Section Cont’d

2. CONTROLS, INDICATORS AND CONNECTORS

2-2 Right Side Section [Cont’d]

•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

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.

CAUTION:

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.

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