Sony NEX-VG20 Handycam&reg Handbook page 74

 Auto
Adjusts automatically depending on the
image being recorded.
Manual
Adjusts manually.
Touch / to adjust the brightness.
To adjust the exposure automatically, touch
[Auto].
Tips

You can also adjust manually by using the

MANUAL dial (p. 46).
Gain
You can adjust the gain manually when you
do not want to use the AGC (automatic
gain control).
 Auto
Adjusts automatically.
Manual
Adjusts gain value (0 dB~30 dB) manually.
Tips

Noise increases at higher gain values.

ISO
Sets the luminous sensitivity for recording
still images.
 Auto
Your camcorder sets the appropriate ISO
sensitivity according to the ambient light.
Manual
Fix to the ISO (100/200/400/800/1600/3200/6
400/12800/25600) adjusted manually.

Notes
The larger the number, the higher the noise

level.
Tips

You can set a faster shutter speed, and reduce

image blur in dark locations or of moving
subjects by increasing ISO sensitivity (select a
larger number).
Gain/ISO Sensitivity (Recommended Exposure

Index) is the sensitivity to light of recording
media that incorporates an image sensor that
receives light. Even when the exposure is the
same, images differ depending on the Gain/ISO
setting.
High Gain/ISO sensitivity

With high Gain/ISO sensitivity, images will
be captured with an appropriate brightness
even under insufficient exposure. However,
increasing Gain/ISO sensitivity will cause
images to become noisy.
Low Gain/ISO sensitivity

You can record smooth images. However, the
shutter speed may slow down to compensate
for low Gain/ISO sensitivity. You should take
camera shake or movement of subjects into
account, too.
AE Shift
You can adjust the exposure manually.
 Off
Optimizes exposure automatically.
On (EV and adjusted number)
Allows for further manual adjustment, after
optimum exposure has been determined by
your camcorder.
US