Sony DSLR-A850 - Manual (Page 69)

Us
ing the shooting
function
69
• The exposure is compensated by 1/3 of a step between ±3.0 EV. You can
set this exposure step to 1/2 EV increments with [Exposure step] in the
Recording menu (page 108).
To compensate the exposure only on the ambient light*
In the default setting, the exposure compensation is performed with the
amount of flash light also changed when the flash is fired. You can limit the
effect of exposure compensation to the background that is illuminated only
by ambient light (light other than the flash) (page 118).
* Ambient light: Any light other than the flash light that shines on the scene
for an extended period of time, such as natural light, a light bulb, or a
fluorescent light.
You can fix the exposure before deciding on the composition when taking a
picture. This is effective when the metering object and focusing object are
different, or when you want to shoot continuously while keeping the same
exposure value.
2
Adjust the exposure with b/B on
the multi-selector.
• You can use the front or rear control
dial instead.
Standard exposure
Shooting with fixed brightness (AE Lock)
1
Target the subject for which you want to meter the exposure.
• Adjust the focus (you do not need to lock the focus.)