JVC GR-DF450 instruction manual Iris Lock, Spot Exposure Control, Backlight Compensation

		FEATURES FOR RECORDING	EN 45
	Iris Lock	To cancel Backlight Compensation
		Press BACK LIGHT twice so that the “	”
		indicator disappears.
Like the pupil of the human eye, the iris
		NOTE:
contracts in well-lit environments to keep too
much light from entering, and dilates in dim		Using Backlight Compensation may cause the light
environments to allow in more light.		around the subject to become too bright and the
Use this function in the following situations:		subject to become white.

●When shooting a moving subject.

● When the distance to the subject changes (so its				Spot Exposure Control
size in the LCD monitor or the viewfinder
changes), such as when the subject is backing		Selection of a spot metering area enables more
away.
		precise exposure compensation. You can select
● When shooting on a reflective natural background
		one of the three metering areas on the LCD
such as at the beach or when skiing.
		monitor/viewfinder.
● When shooting objects under a spotlight.
		1 Set the Power Switch to “M”.
● When zooming.
1 Set the Power Switch to “M”.
		2 Press BACK LIGHT twice so that the Spot
2 Set “p” to “MANUAL”. ( pg. 36)		Exposure Control indicator “			” appears.
● The exposure control indicator appears.		● A spot metering area frame appears at the
3 Adjust zoom so that the subject fills the LCD			center of the LCD monitor/viewfinder.
		3 Press > or < to select the desired spot
monitor or the viewfinder, then press and hold
SET for over 2 seconds. The exposure control		metering area frame.
indicator and the “	” indication appear.	4 Press SET.
4 Press SET. The “	” indication changes to	● Spot Exposure Control is engaged.
“ ” and the iris is locked.		● Exposure is adjusted to make the brightness of
To return to automatic iris control			the selected area most appropriate.

Select “AUTO” in step 2. Or, set the Power Switch to “A”.

●The exposure control indicator and “ ” disappear.

To lock the exposure control and the iris

After step 2, adjust the exposure by pressing < or >. Then lock the iris in steps 3 and 4. For automatic locking, select “AUTO” in step 2. The exposure control and the iris become automatic.

Backlight Compensation

Backlight compensation brightens the subject quickly.

With simple operation, backlight compensation feature brightens the dark subject portion by increasing the exposure.

1 Set the Power Switch to “M”.

2 Press BACK LIGHT so that the Backlight Compensation indicator “ ” appears.

To lock the iris

After step 3, press and hold SET over 2 seconds. The “” indication appears and the iris is locked.

To cancel Spot Exposure Control

Press BACK LIGHT once so that the “ ” indicator disappears.

NOTES:

●You cannot use the Spot Exposure Control at the same time with following functions.

•“SQUEEZE” in “WIDE MODE” (
pg. 38)

•“STROBE” in “PROGRAM AE” (
pg. 47)

•Digital Zoom (
pg. 20)

•Manual Exposure Control

●Depending on the shooting location and condition, optimum result may not be attained.

ADVANCED FEATURES