JVC LYT0192-001B manual Iris Lock, To Return To Automatic Iris Control

EN43

Iris Lock

Use this function when shooting a moving subject, when zooming, when the subject changes its distance (thus its size in the viewfinder), or when you want to lock the brightness level.

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

5S			Lock button
M	OFF Y
A		P	Power Dial
	AL

Select Dial	Iris lock
	indicator

Display

FOCUS	AUTO
EXPOSURE	MANUAL
W. BALANCE	AUTO
FADER	OFF
/ WIPE
P. AE	OFF
/ EFFECT

4RETURN

Manual Mode Item Menu

0 L

1 SELECT OPERATION MODE

First turn the Power Dial to “ M ” while pressing down the lock button located on the dial, make sure the viewfinder is pulled out.

2 ACCESSMENU MANUAL MODE ITEM

Press the Select Dial. The Manual Mode Item Menu appears.

3 ACCESS EXPOSURE CONTROL Move the pointer and highlight bar to “EXPO- SURE” by rotating the Select Dial and then press it. Rotate the Select Dial to display “MANUAL”, then press it. “EXP.” is displayed.

4 CENTRE SUBJECT, LOCK IRIS Adjust zoom so that the subject fills the viewfinder, then press and hold the Select Dial for over 2 seconds. The exposure setting display and “ L ” appear, indicating that the iris is locked.

Press the Select Dial. The indication displayed in the upper left corner changes from “EXP.” to “MANUAL”.

To Return To Automatic Iris Control . . .

.... rotate the Select Dial to display “AUTO” then

press it in step 3. The Exposure Control indicator and “ L ” disappear. Or set the Power Dial to

“ A ”.

NOTES:

Iris lock is recommended in the following situa- tions:

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

●When shooting objects under a spotlight.

●When the subject is backing away.

●When zooming.

To lock the exposure control and the iris . . .

.... after step 3, adjust the exposure rotating the

Select Dial. Then lock the iris in step 4. For automatic locking, rotate the Select Dial to display "AUTO", then press it in step 3. The iris becomes automatic after about 2 seconds.

Iris

Works like the pupil of the human eye. In a well-lit environment, the human pupil contracts to keep too much light from enterintg. In low lighting, the pupil dilates to allow more light in.