Sigma EM-140 DG Mode D'emploi page 14

4. Press the shutter button, after the flash is fully charged.
When the flash is fully charged, the ready light in the viewfinder, and appears on the flash unit.
◆ If flashgun is used with a P-TTL compatible camera, TTL will be
controlled by the P-TTL system. If the flash is set as TTL, "P" will be
displayed on the liquid crystal display.
◆ When the camera receives the appropriate exposure, the TTL icon on
the LCD panel will appear for 5 seconds. If this indication does not
appear, the flash illumination is not enough for that particular situation.
Please re-take the picture, at a closer distance. (In the case of digital
SLR cameras, "Flash Exposure Level" cannot be confirmed from the
camera's viewfinder display or from the blinking display indicator of the
flash's LCD panel. Please confirm the Flash Exposure Level visually
from the image that you capture.)
◆ When the flash is fully charged, the flash mark will appear in the finder.
If the shutter is released before the flash is fully charged, the flash will
not fire, and the camera will take the picture at a slow shutter speed.
It is possible to give the three dimensional effect to your pictures by adjusting the flash ratio of
left or right flash tube or by firing only one side of the flash.
For P-TTL compatible cameras
1. In the S-TTL mode, the flash ratio blinks when you press SEL button.
2. Press the + or – button to set the flash ratio.
Pressing + button will increase the left flashtube and pressing –
button will increase the power amount of the right flashtube. The
ratio can be set up among 8:1~1:8.
3. Press the SEL button several times to stop the blinking.
If the flash ratio is set to 1:1 or the mode is changed, this function will
be cancelled.
How to fire only one flashtube
1. In the TTL mode, press the SEL button to make the Flash Unit display
blink.
2. By pressing the + button, the left flashtube will fire, and by pressing
the - button, the right flashtube will fire. (Only the firing side will
blink on the flash unit display)
3. Press the SEL button several times to stop the blinking.
After shooting please press SEL button and then the + or - button. By doing this flash unit will be set
to default mode, display will show both sides.
For P-TTL incompatible cameras
Flash ratio cannot be set. Only one side can be set.
1. In the TTL mode, press the SEL button to make the Flash Unit display
blink.
2. By pressing the + button, the left flashtube will fire, and by pressing
the - button, the right flashtube will fire. (Only the firing side will blink
on the flash unit display)
3. Press the SEL button several times to stop the blinking.
After shooting please press SEL button and then the + or - button. By doing this flash unit will be set
to default mode, display will show both sides.
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