Canon Speedlite 90EX User manual

MANUAL DE INSTRUCCIONES
MODE D’EMPLOI
INSTRUCTION MANUAL
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Thank you for purchasing a Canon product.
The Canon Speedlite 90EX is a compact flash unit for Canon EOS cameras, and works with
the E-TTL II and E-TTL autoflash systems. All control is performed on the camera side,
letting you easily enjoy flash shooting in the same manner as a built-in flash.
Use with an EOS DIGITAL camera
• The 90EX is designed for optimum use with an EOS DIGITAL camera.
Be sure to also read the description of flash shooting in the camera’s instruction
manual.
* The menu screens used in this instruction manual are the EOS M menu screens.

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Nomenclature ............................................................................................................ 4
Installing the Batteries .............................................................................................5
Attaching the Flash .................................................................................................. 7
Flash Shooting .......................................................................................................... 8
Flash Shooting in Each Camera Mode ................................................................... 9
Other Functions ...................................................................................................... 12
Setting the Flash Functions by Camera Operation ............................................. 13
About Wireless Flash .............................................................................................15
Wireless Settings .................................................................................................... 15
Fully Automatic Wireless Flash .............................................................................18
Flash Ratio with E-TTL II ........................................................................................ 22
Wireless Multiple Speedlite Shooting with Manual Flash Output ...................... 27
Troubleshooting Guide .......................................................................................... 28
Specifications ......................................................................................................... 30
Contents

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Nomenclature
"Flash head/AF-assist beam emitter (p.12)
#Flash output detection sensor
$Locking pin
%Contacts
&Mounting foot (p.7)
'<Q> lamp (p.8)
(Battery compartment cover (p 5)
)Mounting foot lock lever (p.7)
*Power button (p.8)
+Power lamp
'
(
)*
+
"
$%
&
#

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1Slide the battery compartment cover
and open it as shown by the arrows.
2Install two batteries.
Make sure the + and - battery contacts are correctly
oriented.
Return the cover to its original position.
Recycling Time and Flash Count
Recycling Time: Approx. 0.1 - 5.5 sec.
Flash Count: Approx. 100 flashes or more
Based on new size-AAA/LR03 alkaline batteries and Canon’s testing standards.
Installing the Batteries

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Be sure to use a new set of two batteries of the same brand. When replacing the
batteries, replace both batteries at once.
Do not fire more than 20 continuous flashes in a short time.
If you change the batteries after firing flashes continuously, be aware that the batteries
might be hot.
Using size-AAA/LR03 batteries other than the alkaline type may cause improper battery
contact due to the irregular shape of the battery contacts.

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Be sure to turn off the Speedlite before attaching or detaching it.
1Slide the lock lever to the left and
attach the Speedlite to the camera.
Slip the Speedlite’s mounting foot firmly all the way
into the camera’s hot shoe.
2Secure the Speedlite.
Slide the lock lever to the right.
To remove the Speedlite, slide the lock lever to the
left and detach it from the camera.
Attaching the Flash

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1Press and hold the power button for at
least 1 second to turn on the flash.
BThe power lamp turns on and flash recycling starts.
2Check that the <Q> lamp is lit.
When the <Q> lamp lights, you can shoot with the
flash.
See p 32 for guidelines about the flash shooting
range.
3Take the picture.
Flash Shooting

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In this mode, the camera will automatically adjust the flash output level to achieve standard
exposure with Program AE, which automatically sets the shutter speed and aperture
according to the brightness of the subject.
• If the resulting picture is underexposed, increase the ISO speed.
In this mode, the camera will automatically adjust the flash output level to achieve standard
exposure for the automatically set aperture.
• If the aperture display blinks, it means that the background exposure will be underexposed
or overexposed. Adjust the shutter speed until the aperture display stops blinking.
Flash Shooting in Each Camera Mode
V: Program AE
X: Shutter Priority AE

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In this mode, the camera will automatically adjust the flash output level to achieve standard
exposure for the set aperture.
If the background is dark, like a night scene, a slow sync speed will be used to obtain a
standard exposure of both the main subject and background. Standard exposure of the main
subject is obtained with the flash, while a standard exposure of the background is obtained
with a slow shutter speed.
• Since a slow shutter speed will be used for low-light scenes, using a tripod is
recommended.
• If the shutter speed display blinks, it means that the background exposure will be
underexposed or overexposed. Adjust the aperture until the shutter speed display stops
blinking.
Select this mode if you want to set both the shutter speed and aperture manually.
As the camera will automatically adjust the flash output level according to the aperture you
set, the exposure of the main subject will be standard. The exposure of the background is
obtained with the shutter speed and aperture combination you set.
W: Aperture Priority AE
q: Manual Exposure