SIGMA ELECTRONIC FLASH EF-610 DG SUPER EO-ETTL II (キヤノン用) - Manual (Page 21)

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◆ This mode cannot be used with EOS 700, 750, 850 cameras.
1. Set the desired picture-taking mode of the camera.
2. Press + or - button mark will be displayed on the LCD
panel.
3. Adjust the focus and take the picture after confirming the ready
light.
◆ First curtain synchronization will be set if
mark is not displayed.
◆ If the camera is set to Full Auto Mode this function cannot be used.
◆ To cancel second curtain synchronization, turn off the mark on the LCD panel by using + or -
buttons.
HIGH SPEED SYNC (FP) FLASH,
A TYPE CAMERAS ONLY
When you take a picture with an ordinary flash, you cannot use a shutter speed faster than the
camera’s synchronized speed because the flash must fire when the shutter curtain is fully open. When
using the High Speed Sync mode, the flash keeps firing while the shutter curtain is running, thus you
can use a shutter speed faster than the shutter’s normal synchronization speed.
1. Select the camera’s exposure mode. (“Tv” or “M” modes can be used)
2. Select a shutter speed faster than the camera’s normal synchronization speed.
3. Slide the Power Switch of the flash to the ON position.
4. Choose the Flash Mode by using MODE button (“ETTL” or “M”
modes can be used).
5. Press + or - button until the mark is displayed on the
LCD panel.
6. Focus on the subject
7. Check that the subject is located within the effective distance,
indicated on the LCD panel.
8. Confirm the mark is in the viewfinder of the camera and then you can take the picture.
◆ With high-speed sync, the Guide Number changes depending on the shutter speed. The flash range
will be shorter (ie Guide Number will be smaller) when the shutter speed is faster. (Refer to table 2
on the last page).
◆ Selecting shutter speeds slower than the camera’s normal synchronization speed cancels Hi-speed
sync. Then the flash will automatically set to normal ETTL operation. To activate FP flash again,
follow the procedure above from point 1.
◆ It is possible to use the exposure compensation function with high speed synchronization operation.
To do so, please refer to your camera’s instruction manual regarding “exposure correction”.
◆ will disappear when Hi-speed sync (FP Flash) is cancelled.
FE LOCK
“FE” lock mode allows you to choose and lock the exposure before taking the picture.
1. Set the camera’s exposure mode (“P”, “Tv”, “Av”, “M” or “DEP”).
2. Set the flash’s mode to the E-TTL or the High Speed Sync.
3. Focus on the subject
4. Focus on the subject in the center AF frame of the viewfinder, and depress FE lock button.
◆ The flash unit will make a pre-flash, then calculate and memorize the amount of light necessary for
the correct exposure.
◆ The camera’s viewfinder will display “FEL” for 0.5 sec and the correct exposure will be set.
◆ If the viewfinder shows mark, it means that power is not sufficient for correct exposure. Please
get closer to the subject and repeat from step 3.
5. After composing the picture, press the shutter button.
◆ This function may vary depending on camera model. For more details please refer to “FE lock”
instructions of your camera manual.