+
Various cameras support manual flash mode
M only in the camera's M mode (manual).
In other camera models, an error message
appears in the display and the release is
locked.
Manual partial light output levels
Partial light output can be set in manual flash
mode
Setting procedure
• Press the sensor button for partial light out-
M
4.4 m
m
Z
F4.0
35
OOM
m
INFO
1/1
• Press sensor buttons
1/1
5,5m
k
1/1
-1
/
3
• Press the sensor button on the touch
1/16
-1
1/16
/
The setting is immediately effective and
3
1/16
-2
/
automatically saved.
3
The distance display is adjusted to the partial
light output automatically (see 5.2).
160
M
.
put on the touch display as many times as
it takes for the partial light output display
to appear.
touch display and set the desired partial
light output to 1/1, 1/2, 1/8 or 1/128.
display for the selected partial light output.
on the
7.4 Automatic high-speed synchroni-
sation (HSS)
Various cameras support automatic high-
speed synchronisation (see the camera's
operating instructions). This flash mode
makes it possible to use a flash unit even
with shutter speeds that are faster than the
flash sync speed.
Interesting results may by achieved in this
mode when, for example, a wide open aper-
ture (e.g., f/2.0) is used to limit the depth of
field in portrait shots taken in very bright
ambient light. The flash unit supports high-
speed synchronisation in E-TTL and M flash
modes.
For physical reasons, however, high-speed
synchronisation significantly reduces the
number and the maximum flash range. Be
sure to note, therefore, the flash range on the
display of the flash unit. High-speed synchro-
nisation is activated automatically if a shut-
ter speed faster than the flash sync speed is
set on the camera, whether manually or auto-
matically by the exposure program.
Note that in the case of high speed synchro-
nisation the guide number of the flash unit
also depends on the shutter speed. The
faster the shutter speed, the lower the guide
number!