Panasonic AG-DVC30 Shutter speed, iris and gain adjustments, Iris and gain adjustments

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Shutter speed, iris and gain adjustments (cont.)

5When the multi dial is pressed, the number representing the normal shutter speed appears on the screen.

	SHUTTER/IRIS
11/50	PUSH

VOL/JOG

Iris and gain adjustments

4 When you press the multi dial, the iris and gain values are displayed on the screen.

	SHUTTER/IRIS
1/100	PUSH
1F5.6
0dB	VOL/JOG

O With artificial lighting and especially fluorescent lights and mercury-vapor lamps, the luminance changes in synchronization with the power line frequency. In areas where this frequency is 60 Hz, mutual interference will occur between the camera-recorder’s vertical sync frequency (approx. 50 Hz) and the lighting frequency (60 Hz). This means that the white balance may change periodically.

Before shooting in areas with a 60 Hz frequency or adjusting the white balance, set the shutter speed to 1/60.

O The higher the shutter speed, the lower the camera’s sensitivity.

O If the shutter speed is increased when the auto iris is set (when the F-number is not displayed), the iris will open (the F-number is reduced) so that the background is more blurred and the subject stands out.

O Shooting at a slow shutter speed may give rise to such problems as after-image, a deterioration in the image quality and difficulties in focusing.

O When a slow shutter speed has been selected, images are shot with the CCD taking more time than usual to accumulate the signals.

As a result, very small brilliant points that are not usually visible may be recorded as the images: this is normal and does not indicate an error or malfunctioning.

5 Turn the multi dial to select the F-number.

	SHUTTER/IRIS	SHOOTING
1/100	PUSH
1F2.8
0dB
	VOL/JOG

Iris (F-number):

CLOSE, F16-F1.7, OPEN

6 When OPEN is selected as the F-number, 1 moves to the gain value.

7 Turn the multi dial to select the gain value.

SHUTTER/IRIS

1/100	PUSH
OPEN
13dB

VOL/JOG

Synchro scan shutter speeds

A synchro scan shutter speed is a shutter speed used to shoot TV screens or PC monitor screens.

The synchro scan shutter speed is set using the SYNCHRO SCAN item on the CAMERA SETUP screen when the synchro scan shutter speed has been selected by the multi dial. (P72)

O If you adjust the shutter speed to match the frequency of the TV screen or PC monitor screen, you can shoot the screen while minimizing the horizontal noise that is generated when TV screens are shot.

Gain value:

0 dB, 3 dB-15 dB, 18 dB

O When “IRIS” has been selected as the FOCUS RING item setting on the SW MODE screen using the menus (P67-P70), you can use the focus ring to adjust the iris and gain but only when you are shooting in the auto focus mode. (P75)

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