J E D F N
C K R P F19E10091
ELECTRONIC FLASH EF-610
Thank you very much for purchasing the Sigma EF-6
10 ST EO-ETTL II Electronic
Flash. This product is specifically develop
ed for the Canon EOS series SLR cameras.
Depending on the camera model, functi
ons and operation may vary . Please read this
instruction booklet carefully
. T o add to your enjoyment of photography , the flash has a
variety of features. T
o make the m ost of all these features, and to get the maximum
performance and enjoyment from
your flash, please read this instructi on booklet,
together with your camera’s instruction m
anual, before using the flash, and also keep
it handy for your future reference.
PRECAUTIONS DESCRIPTION OF THE PARTS (fig.1)
2.AF Auxiliary Light
5.Bounce Angle; Up
6.Swivel Lock and Release B
utton; Right and Left 7.Bounce Angle; Right and Left
9.Flash Coverage Angle Indicator
10.Bounce Lock and Release
Button; Up and Down 1 1
Light Panel 15. W ide Panel
ABOUT THE BATTERY
This flash unit uses four “
AA” type Alkaline dry cell batteries or Ni-Cad, Ni-MH,
rechargeable batteries. Manganese bat
teries can also be used but as they have a
shorter life than Alkaline batteries, we do not recomm
end using them. Please replace
batteries if it takes more than 30seconds
to light the Ready Lamp.
o assure proper electrica l contact, clean the battery terminals bef ore installing the
NiCad batteries do not have standardized contacts. If you use NiCad batteries,
please confirm that the batter
y cont acts touch the battery com p artment properly .
T o prevent battery explosion, leakage or overheating, use four new AA batteries of
the same type and br
and. Do not mix the type or new and used batteries.
Do not disassemble or s hort-circuit batteries, or expose them fire or water; they
may explode. Also, do not
recharge the batteries other than Ni-Cd r echargeable
When the flash will not be use d for an extended period of time, remo ve the
batteries from the flash, to avoid th
e possibility of damage from leakage.
Battery performance decreas es at low temperatures. Keep batteries i nsulated when
using the flash in cold weather.
As with any flash, it is recommended you carr y spare batteries when on a long trip,
or when photographing outdoors in col
d weather . BATTERY LOADING
Be sure to set the Power Switch to the off position then slide, the battery cover in
the direction of the arro
w to open (fig.2).
Insert four AA size batteries into the battery chamber. Be sure the + and – ends of
the batteries are aligned according
to the diagram in the chamber (fig.3).
Close the cover .
Slide the Power S w itch to the ON position. After few seconds, t he Ready Lamp will
light, indicating that the flash unit c
an be fired.
Please press the “T est Button” to be sure that the flash is working properly .
If the battery power is not sufficient, or if there is an electro nic information error , the
flash coverage angle indicator
will blink to indicate the condition. ATTACHING AND REMOVING THE FLASH TO AND FROM THE CAMERA
Be sure turn off the Power Switch. Then i
nsert the Shoe Base into the hot shoe on the
camera and turn the Shoe Locking
Ring until it is tight (fig.4)(fig.5).
When you attach or remove the flas h, grasp the bottom of the flash to prevent
damage to the shoe foot and
camera’s hot shoe.
If the camera’s built-in flash is set in up position, please close it before you attach
the flash unit.
T o remove the flash, rotate the sh oe-locking ring in the opposite dir ection of
LOCK mark, until it stops. ETTL(TTL) AUTO FLASH
In the TTL AUTO Mode, the camera will control the amount of flash lighting to ge
appropriate exposure for the subje
Set the camera’s mode to Full-AUTO Mode. (Usually
Mode. If the camera
does not have
Mode, set to P Mode.)
2. Slide the Power Switch to the TTL Position.
If the flash coverage angle i ndicator blinks when you turn on the po wer of your flash
please make sure t
hat the flash head bounce angl e is adjusted to the normal (0 ˚ )
3. Focus onto the subject.
4. Press the shutter button after the flash is charged.
After a picture is taken, and the film receives appropriate exposure, the Ready
Lamp will blink. If the Ready Lamp does
not blink, it indicates that the flash light
was not sufficient for that particular situation. Ple
ase retake the picture at a distance
closer to the subject.
The AF Auxiliary Light will turn on automati cally as you focus on a dark area.
Note: Effective distance is up to about 0.7 to 9 met
er (2.3-29.5 feet).
When the flash is f ully charged, the flash mark wi ll 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 fla
T o conserve battery po wer , the flash u nit automatically turns itself off when the flash
is not used within appro
ximately 90seconds. T o turn the flash on again, depress the
“TEST” button or the camera shutter
button, halfway .
The flash will automaticall y set the Zoom Head position according to the focal
length of your lens.
Please refer to 《 chart.1》 for the effective dist ance ranges. USING FLASH IN OTHER CAMERA MODES (Except EOS700, 750, 850)
Shutter Speed Priority Setting
By selecting the Tv mode o
f the camera, you can set the shutter spe ed from 30sec. to
1/X sync speed. When you set the desired shutter speed, th
e camera will select the
appropriate aperture value for the backg
round. If the subject is too light or too dark,
the aperture value indicator will blink and sho
w the limit values (maximum or minimum
aperture). In such as case, the camera pr
oceeds to take flash photograph at the limit
value. Thus, the m
ain subject in the picture may be exposed c orrectly , but the
background will become under or o
Aperture Priority Setting
By selecting the Av mode of your camera, the c
amera will select the appropriate
shutter speed for the background.
If the subject is too bright or too dark, t he shutter
speed indicator will blink and sho
w the limit highest or slowest shutter spe ed value.
The highest shutter speed
will be limited to the camera’s normal flash s y nchronization
speed. In such a case, the camera proceeds to take a flash photograp
h at the limit
value. Thus, the main subj
ect in a picture may be exposed correctly , but the
background will become under or o
When used with M Mode
ou can set the desired shutt er speed and aperture value. The sync speed of cam era
is 30sec. If you adjust e
xposure according to the exposure meter indic ation, the
camera will work as for Daylight s
ynchronization flash or slow synchronization. MANUAL FLASH OPERATION (Except EOS700, 750, 850)
This flash unit can be used in
Manual Mode at full power and at 1/16 power.
Set the camera’ s exposure mode to Manual / M mode.
Slide the flash unit’s Power S witch to MH (full flash power) or to ML (1/16 flash
Focus on the subject and set the camer a’s F-stop, using the exposure calculated b y
the formula shown below:
F-stop = Guide Number (G
.N.) ÷ Flash to Subject Distance (m)
After the flash is f ully charged, press he Shutter Release butto n to t ake the picture.
Guide Number will ch
ange according to t he Zoom Head position , (see 《 chart.2》 ). G uide
Number will also cha
nge according to fil m speed (ISO ),(see 《 chart.3》 ). In the case of
films, multiply the
《 chart.3 》 number by the 《 chart.2 》 number . Fo r
example, using ISO200 film
, Zoom Head position for 24mm and the MH mode;
《 chart.3》 number ”1.4” by the 《 chart.2》 number “34. 0”: 34.0 × 1.4=47.6. This
will be the new effective Guide Number (G
.N.) in meters. T o determine th e G .N. in feet,
multiply the G
.N. in meters by 3.3.
. If flash to subject distance is 8.5 m eters:
F-stop = 47.6 ÷ 8 .5 = 5.6 (5.6 is the F-stop to set on the ca mera.)
When repeatedly usi
ng the flash rapidly in the MH mode, it s hould be allowed to “rest”
for about 10 minutes after each 20
flashes. If used under the same conditio ns in the
ML mode, the flash should be allowed to “rest” after each 40 flashes.
This flashgun is equipped with a built-in wide panel, which can provide an ultra wide
17mm angle of coverage. Slide out t
he wide panel and catch light panel and flip it
down to cover the flash’s head (fig.6-1).
(Be careful to slide the panels out smoothly .)
Then put the catch light panel back i
n it s place (fig.6-2). T he coverage angle setting of
the flash will be set to 17mm autom
The flash coverage angle indicator will show that the wide panel is in use by
blinking the both end values (
24mm and 105mm) slowly (1sec each time).
If the built-in wide panel comes off accidentally , adjustment mecha nism of flash
coverage angle will not function. In this case plea
se contact the store where you
have purchased the flash, or
a service station. BOUNCE FLASH
When you take a photo with flas
h in a room, sometimes a strong sh adow will appear
behind the subject, if you point the flash head up
wards or sideways to reflect the light
off the ceiling, wall etc. th
e subject will be illuminated so ftly . Press the lock but ton and
adjust the flash head to set t
he bounce angle (fig.7).
0°, 60°, 75°, 90° DOWN: 0°,7°
: 0°, 6 0°, 75°, 90 ° LEFT : 0°, 60°, 75°,90°, 120°, 150°, 180°
Please refer to the follo wing chart.
Symbol denotes t
he importa nt points, wh ere warning and caution are re quired
Symbol cont ains informati on regarding the actions that must b e avoided. ENGLISH
e product d isregard ing this wa rning sign m ight cause s erious in jury or o ther dangerous result s.
This flash contains high voltage circuits. T
o avoid electric shock o r burns, do not
attempt to disassemble th
e flash. If the outside shell of the u nit is broken or cracked,
do not touch the mechanism i
Do not fire the
flash close to eyes. Otherwise the bright light could damage the eyes. Ke ep
at least 1m/3feet distance between face and the flash unit, when taking a picture
wit h flash.
Do not touch the synchro t
erminal of your camera when the flash is attached to hot
shoe. High voltage circuitry could cause el
Never use your camera in an en
vironment where flammable, burnable, gas, liquids o
chemicals, etc, exist. Otherwis
e, it might cause fire or explosion.
Using the product disregarding thi s caution sign mig ht cause injury or da mage.
Do not use this flash unit on any camera other than t
he Canon EOS series cameras;
otherwise the flash may dama
ge the circuitry of these cameras.
This flash unit is not waterproof. W
hen using the flash and camera in the rain or snow
or near water, keep it from getting wet. It i
s often impractical to repair internal electrical
components damaged by water.
Never subject the flash and camera t
o shock, dust, high temperature or humidity .
These factors might cause fire or m
alfunctioning of your equipment.
When the flash is su
bjected to sudden temperature change, as when the flash unit is
brought from a cold exterior to warm interior, condensation might form inside. In such
a case, place your equipmen
t in a sealed plastic bag before such a change, and do
not use the flash unit, until it r
eaches room temperature.
Do not store your flash in a drawer or cupboard etc., containing naphthal
or other insecticides. These chemicals will
have negative effect s on the flash unit.
Do not use a thinner, Benzene or other cleaning agents to remove dirt or finger prints
from the component. Clean with a s
of t, moistened cloth.
For extended storage, choose a cool dr
y place, preferably with good ventilation. It is
recommended that the flash be c
harged and fired several times a month, to main t ain
proper capacitor functioning.
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