Metering Mode - Sony a (alpha) DSLR-A100 Operating Instructions Manual

to +2.0 EV
0 EV
to –2.0 EV
• You can set the degree of compensation in 1/3 increments.
• When the built-in flash is pulled up, the set flash compensation value is displayed below the Ev scale on
the LCD monitor.
• When you press the shutter button halfway down,
• When performing flash compensation with the built-in flash, the positive effect may not be visible due to
the limited amount of flash light, if the subject is at or around the maximum distance for the flash. If the
subject is very close, the negative effect may not be visible.
z Exposure compensation and Flash compensation
Exposure compensation changes the shutter speed, aperture, and ISO sensitivity (when [AUTO] is selected)
to perform the compensation. If the flash is used, the amount of flash light is also changed.
On the other hand, Flash compensation only changes the amount of flash light, thereby controlling the
relative effect of the flash light on the whole picture. For instance, if you want to reduce the flash light, you
can set the flash compensation on the slightly negative side and at the same time set the exposure
compensation on the positive side to adjust the brightness of the entire picture.
• You can keep the amount of flash light from changing with the exposure compensation (page 95).

Metering mode

You can select a metering mode (a method whereby the camera measures the brightness of a
subject) from the following three methods.
1 Display the Metering mode screen with the function dial and the Fn button (page 43).
2 Select the desired mode with b/B on the controller, then press the center of the controller.
(MultiSegment)
(Center weighted)
58
Toward +: Makes the flash level higher.
The amount of flash light that the camera adjusts
automatically.
Toward –: Makes the flash level lower.
appears in the viewfinder.
This divides the whole screen into 40 segments to measure
light (40-segment honeycomb pattern metering).
While emphasizing the central area of the screen, this mode
measures the average brightness of the entire screen. If you
shoot directly into the sun light or the subject is not in the
center of the image, you must use exposure compensation
(page 65).
( : The default setting)
ISO WB D-R DEC
( : The default setting)