Sony ILCE-6500 Manual page 118

Note
You cannot perform the exposure compensation in the following shooting modes:
[Intelligent Auto]
[Superior Auto]
[Scene Selection]
When using [Manual Exposure], you can perform the exposure compensation only when [ISO] is set
to [ISO AUTO].
Only a value between -3.0 EV and + 3.0 EV with the equivalent image brightness appears on the
screen when shooting. If you set an exposure beyond this range, the image brightness on the screen
does not show the effect, but it will be reflected in the recorded image.
You can adjust the exposure in a range of -2.0 EV to +2.0 EV for movies.
If you shoot a subject in extremely bright or dark conditions, or when you use the flash, you may not
be able to get a satisfactory effect.
[92] Shooting Adjusting the exposure modes/metering modes
Dial/Wheel Ev Comp
You can adjust the exposure compensation using the control dial or the control wheel.
MENU →
1
Menu item details
Off:
Does not assign the exposure compensation function to the control dial or control wheel.
Wheel:
Assigns the exposure compensation function to the control wheel.
(Camera Settings2) → [Dial/Wheel Ev Comp] → desired setting.