SIGMA ELECTRONIC FLASH EF-610 DG SUPER NA-iTTL (ニコン用) - Manual (Page 23)

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10. When the ready light of the flash is illuminated, the unit is ready to use.
Note: Please set the shutter speed longer than; Number of Flashes you want ÷ Firing Frequency
How to set the correct flash power level
Page 18 <<CHART A>> combination of 1
Read out the subject distance from the focus ring on the lens. Then adjust the aperture ring on the lens
until the distance indicated on the LCD panel of the flash and the subject distance become about equal.
When using with cameras other than the above
Read-out the subject distance from the focus ring on the lens. Either change the flash power level or
the flash’s F-stop. Please refer following on how to change the flash’s F-stop.
1. Press the SEL button several times to make the F-stop indicator blink.
2. Press the + or – button and set the F-stop.
3. Press the SEL button and make the indicator of F-stop stop blinking.
Please set the distance indicated on the LCD panel of the flash and the actual subject distance so that they
are about equal.
Then set that F-stop on the lens aperture ring.
* You can calculate the correct exposure by using this formula:
Guide Number “GN” / Flash to Subject Distance = F-stop
This flash unit will calculate and indicate the Subject Distance by following the above formula.
(Please refer to table 1 on the last page)
BOUNCE FLASH
When you take a photo with flash in a room, sometimes a strong shadow will appear behind the
subject If you point the flash head upwards or sideways to reflect the light off the ceiling, wall etc, the
subject will be illuminated softly. Press the lock button and adjust the flash head to set the bounce
angle.
UP: 0°, 60°, 75°, 90° DOWN: 0°,7°
RIGHT: 0°, 60°, 75°, 90° LEFT: 0°, 60°, 75°,90°, 120°, 150°, 180°
When the bounce flash mode is activated, a bounce indicator
will appear on the LCD panel.
Choose a white surface for bouncing the flash, otherwise the
image’s colour may be incorrect. Depending on the reflecting
surface, the subject distance and other factors, the effective
distance range for the TTL AUTO may change. Please check for
correct exposure confirmation (TTL BL or TTL mark on the LCD
panel) after releasing the shutter.
CLOSE-UP EXPOSURES
Bounce flash can be tilted 7° downward for close-ups. The Flash will be effective only for the subjects
0.5 meter to 2 meters. When the flash head is tilted 7°
will blink.
CATCH LIGHT PANEL
This flash is equipped with a built-in catch
light panel, which can create a catch light in
the eyes of the subject when the bounce
flash mode is activated. Slide out the wide
panel and catch light panel, and then put
wide panel back in its place. (Be careful to
slide the panels out smoothly.)
◆
To create a catch light effectively, tilt the flash head upward 90 degrees and take pictures at a close
distance.