JVC GR-DVX509SH, GR-DVX509ED, GR-DVX709ED, GR-DVX400ED Iris Lock, Backlight Compensation, Seconds

EN 57

Iris Lock

MENU Wheel BACKLIGHT Button

VIDEO/MEMORY Switch (GR-DVX709/ 509 only)

Power Switch

AY OFF A	M
PL

EXPOSURE Button	Lock Button
(GR-DVX400 only)

Like the pupil of the human eye, the iris contracts in well-lit environments to keep too much light from entering, and dilates in dim environments to allow in more light.

Use this function in the following situations:

●When shooting a moving subject.

●When the distance to the subject changes (so its size in the LCD monitor or the viewfinder changes), such as when the subject is backing away.

●When shooting on a reflective natural background such as at the beach or when skiing.

●When shooting objects under a spotlight.

●When zooming.

When the subject is close, keep the iris locked. Even when the subject moves away from you, the image will not darken or brighten.

Before starting, perform the procedures listed below:

●Set the Power Switch to “M” while pressing down the Lock Button located on the switch.

●Open the LCD monitor fully, or pull out the viewfinder fully.

1For GR-DVX709/509:

Set “p EXPOSURE” to “MANUAL”. (
pg. 43)

For GR-DVX400: Press EXPOSURE.

● The exposure control indicator appears.

2Adjust zoom so that the subject fills the LCD monitor or the viewfinder, then press and hold the MENU Wheel for over 2 seconds. The exposure control indicator and the “” indication appear.

Press the MENU Wheel in. The “” indication changes to “” and the iris is locked.

3

Iris Lock Indicator

To return to automatic iris control...

For GR-DVX709/509:

Set “p EXPOSURE” to “AUTO”. (
pg. 43) Or, set the Power Switch to “A”.

For GR-DVX400:

Press EXPOSURE twice. Or, set the Power Switch to “A”.

●The exposure control indicator and “” disappear.

To lock the exposure control and the iris… After step 1 of “Exposure Control”, adjust the exposure by rotating the MENU Wheel. Then lock the iris in step 2 of “Iris Lock”. For automatic locking, select “AUTO” or press EXPOSURE twice in step 1. The iris becomes automatic after about

2 seconds.

Backlight Compensation

Backlight compensation brightens the subject quickly.

Press BACKLIGHT. The indicator is displayed and the subject is brightened. If pressed again, disappears and the brightness returns to the previous level.

●Using BACKLIGHT Button may cause the light around the subject to become too bright and the subject to become white.

●Backlight compensations is also available when the Power Switch is set to “A”.