Canon Camera Flash 270EX II User Manual

Key Features and Controls  
Flash head – Emits flash and AF-assist beam  
Flash ready light  
Power switch  
QuickGuide to Canon  
270EX II Speedlite Features  
The purpose of this QuickGuide is to provide a concise  
review of how to operate the features and functions of the  
Canon 270EX II Speedlite. Unless otherwise noted, the  
following instructions require your Speedlite to be mounted  
to your camera’s hot shoe. This will allow your camera to  
communicate with the 270EX II and for you to make flash  
settings with the camera’s menu system.  
Wireless sensor – Senses triggering and  
control signals from master flash unit  
OFF: Turns off power  
SLAVE: Activates wireless slave mode  
ON: Turns on power  
Remote control transmitter – Emits signal  
for remote triggering of compatible cameras  
Remote release button – Allows remote triggering  
of EOS Digital Rebel, Rebel XT, XTi, XSi, T1i, T2i, T3i,  
EOS 7D, and 5D Mark II (as of mid-2011)  
Bounce angle index marks – Has marks for  
60º, 75º, and 90º  
Camera Exposure Mode Settings  
Flash Coverage  
The 270EX II will function in any of the camera exposure  
modes below. The maximum speed at which your camera  
can synchronize with the flash exposure is represented by  
“1/x sec” (such as 1/200 with EOS Rebel models).  
The flash head can be manually extended or retracted to  
better match the flash coverage to the camera and lens in  
use. Refer to the table below for recommended settings.  
Flash Control via the Camera Menus  
Any control of the Speedlite 270EX II beyond simple  
automatic E-TTL exposure requires a camera body with  
External Flash Control Menu capability, such as the EOS  
40D ~ 60D; Rebel XS/XSi, T1i, T2i, T3, T3i; EOS 7D, 5D  
Mark II, EOS-1D Mark III / Mark IV, and EOS-1Ds Mark III  
(as of mid-2011).  
Camera type  
Head Normal  
Head Extended  
Mode  
Shutter speed  
Aperture  
APS-C size sensor  
(Rebel series, 60D,  
7D)  
17mm or longer lens  
32mm or longer  
lens  
Full Auto, P,  
A-DEP  
Set automatically (1/x sec. – 1/60 sec.)  
Automatic  
Full-frame sensor  
(EOS 5D & 1Ds  
series)  
28mm or longer lens  
50mm or longer  
lens  
TV  
AV  
M
Set manually (1/x sec. – 30 sec.)  
Set automatically (1/x sec. – 30 sec.)  
Set manually (1/x sec. – 30 sec., Bulb)  
Automatic  
Manual  
E-TTL II Auto Flash Set-up  
For cameras with built-in flash:  
Manual  
E-TTL II Flash Range  
1. Press the camera Menu button.  
2. Select the first Shooting Menu (first camera icon on the  
left).  
3. Select [Flash control] or [External Speedlite control].  
4. Select [External flash func. setting]. Press Set.  
5. Set [Flash mode] to [E-TTL II]  
The mode you choose will depend mainly on the balance  
you prefer between the flash exposure and the ambient  
light exposure. Longer shutter speeds will allow longer  
ambient light exposures to help prevent dark backgrounds;  
however, long exposures also risk blur from subject or  
camera motion. Smaller apertures provide more depth-  
of-field but require more flash power and reduce the  
maximum flash range.  
The flash range will vary depending on the ISO, the angle  
of coverage, and the maximum aperture of your lens. If  
you see a blinking <> icon in your viewfinder then your  
subject is too far away. You should either move closer or  
increase the ISO. Do not use the 270EX II in the extended  
position with lenses that have a focal length of 30mm or  
less, otherwise the edges of the frame will be noticeably  
darker than the center.  
This step is not necessary for cameras that have no built-in  
flash. It is also not necessary if you have not previously  
changed the default flash settings on your camera.  
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