Sigma EM-140DG Instrucciones página 24

ETTL (TTL) AUTO FLASH
In the TTL AUTO Mode, the camera will control the amount of flash lighting to get the appropriate exposure
for the subject.
"A" type cameras can be set in ETTL mode. "B" type cameras can be set in TTL mode.
1. Set the camera's mode to Full-AUTO Mode. ( Usually
Mode, set to P Mode.)
2. Turn on the power switch of the flash, the ETTL (TTL) mark will
appear on the LCD panel and flash will start charging.
3. Focus on your subject.
4. Press the shutter button, after the flash is fully charged.
Note: When the flash is fully charged, the ready light in the viewfinder
appears.
 When the camera receives the appropriate exposure, the ETTL (TTL)
mark on the LCD panel will appear for 5 seconds. If this indication
does not appear, the flash illumination is not sufficent for that situation.
Please re-take the picture at a closer distance.
When the camera is set to Creative Zone, please remember that the
flash will be set to the last chosen mode each time.
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 camera
will take the picture at a slow shutter speed, with no flash.
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.
A Type Cameras
1. In the ETTL 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. Press
the + or - button to trigger only one side. (flash ratio will not be
displayed and only firing side will blink)
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.
B Type 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.
USING FLASH IN OTHER CAMERA MODES (Except EOS700, 750, 850)
Shutter Speed Priority Setting
By selecting the Tv mode of the camera, you can set the shutter speed from 30sec. to 1/X sync speed.
When you set the desired shutter speed, the camera will select the appropriate aperture value for the
background. If the subject is too light or too dark, the aperture value indicator will blink and show the limit
values (maximum or minimum aperture). In such as case, the camera proceeds to take flash photograph at
the limit value. Thus, the main subject in the picture may be exposed correctly, but the background will
become under or over exposed.
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□ Mode. If the camera does not have □