Sony ILCA-77M2 - Manual (Page 63)

Fill-flash (default setting):
The flash works every time you trigger the shutter.
Slow Sync.:
The flash works every time you trigger the shutter. Slow sync shooting allows you to shoot a clear image
of both the subject and the background by slowing the shutter speed.
Rear Sync.:
The flash works right before the exposure is completed every time you trigger the shutter. Rear sync
shooting allows you to shoot a natural image of the trail of a moving subject such as a moving car or a
walking person.
Wireless:
Allows you to shoot by removing the remote control-compatible external flash (sold separately) and
using it at a distance from the camera. The shading effect gives the subject a more three-dimensional
feel.
High speed synchronization:
High speed synchronization function (HSS) can be used only when an HSS-capable external flash (sold
separately) is attached to the product. An HSS flash operates by sending multiple small bursts of light at
high speed to simulate the effect of one long burst of flash so that you can shoot images with flash at all
shutter speeds.
* High speed synchronization function (HSS) is also available during wireless flash shooting.
Note
The default setting depends on the shooting mode.
Available flash mode depends on the shooting mode.
[54] How to Use Using shooting functions Using the flash
Flash Comp.
Adjusts the amount of flash light in a range of –3.0 EV to +3.0 EV.
Flash compensation changes the amount of flash light only. Exposure compensation changes the
amount of flash light along with the change of the shutter speed and aperture.
1. MENU
→
(Camera Settings)
→ [Flash Comp.] → desired setting.
Selecting higher values (+ side) makes the flash level higher, and lower values (– side) makes the
flash level lower.
Note
The higher flash effect may not be visible due to the limited amount of flash light available, if the
subject is outside the maximum range of the flash. If the subject is very close, the lower flash effect
may not be visible.