Exposure control, Iris lock, 39 iris lock – JVC GR-D280 User Manual

Page 39: Pg. 39), Exposure control iris lock

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EN

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Manual exposure control is recommended in the
following situations:

● When shooting using reverse lighting or when the

background is too bright.

● When shooting on a reflective natural background

such as at the beach or when skiing.

● When the background is overly dark or the subject

is bright.

1

Set the Power Switch to “M”.

2

Set “p” to “MANUAL”. (

੬ pg. 31)

● The exposure control indicator appears.

3

To brighten the image, press +. To darken the

image, press . (maximum ±6)

● +3 exposure has the same effect as the backlight

compensation. (

੬ pg. 40)

● –3 exposure has the same effect as when “r” is

set to “SPOTLIGHT”. (

੬ pg. 42)

4

Press MENU. Exposure adjustment is

complete.

To return to automatic exposure control
Select “AUTO” in step

2. Or, set the Power

Switch to “A”.

NOTES:

● You cannot use the manual exposure control at

the same time when “r” is set to “SPOTLIGHT”
or “SNOW” (

੬ pg. 42), or with the backlight

compensation.

● If the adjustment does not cause any visible

change in brightness, set “GAIN UP” to “AUTO”.
(

੬ pg. 31, 32)

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.

1

Set the Power Switch to “M”.

2

Set “p” to “MANUAL”. (

੬ pg. 31)

● The exposure control indicator appears.

3

Adjust zoom so that the subject fills the LCD

monitor or the viewfinder, then press and hold
MENU for over 2 seconds. The exposure control
indicator and the “

” indication appear.

4

Press MENU. The “

” indication changes to

” and the iris is locked.

To return to automatic iris control
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.

Exposure Control

Iris Lock

GR-D280PAL.book Page 39 Saturday, January 22, 2005 4:09 PM

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