QuickGuide to Canon 320EX Speedlite Features
Key Features and Controls (back)
Firing group selection switch Assigns firing group when 320EX is combined with other wireless Speedlites
TELE lamp
Glows steadily when the flash coverage matches the lens coverage. Blinks when coverage is too narrow for lens coverage.
Power switch 
On turns on power
Slave is for wireless operation
Off shuts off power.
Channel selection switch Assigns firing channel for wireless operation. Slave flash channel must match master flash channel.
Manual LED light button
Press and hold until the LED light turns on.
LED light switch
Set to M to enable Manual activation of LED light. Set to Auto with EOS models having auto LED illumination function, such as Rebel T3 and T3i.
The purpose of this QuickGuide is to provide a concise review of how to operate the basic features and functions of the Canon 320EX Speedlite. Unless otherwise noted, the following instructions require your 320EX Speedlite to be mounted to your camera’s hot shoe. This will allow your camera to communicate with the 320EX and for you to make flash settings with the camera’s menu system.
E-TTL II Auto Flash Set-up
For cameras with
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
This step is not necessary for cameras that have no
Camera Exposure Mode Settings
The 320EX will function in any of the camera exposure modes listed below. The maximum shutter speed at which your camera can synchronize with the flash exposure is represented by “1/x sec” (such as 1/200th second on EOS Rebel models).
Mode | Shutter speed | Aperture |
Full Auto, P, | Set automatically (1/x sec. – 1/60 sec.) | Automatic |
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TV | Set manually (1/x sec. – 30 sec.) | Automatic |
AV | Set automatically (1/x sec. – 30 sec.) | Manual |
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M | Set manually (1/x sec. – 30 sec., Bulb) | Manual |
The mode you choose will depend mainly on the balance you prefer between the flash exposure and 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-
Flash Coverage
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.
Camera type | Flash Head Normal | Head Extended |
15mm or longer lens | 32mm or longer | |
(Rebel series, 60D, 7D) |
| lens |
24mm or longer lens | 50mm or longer | |
(EOS 5D & 1Ds series) |
| lens |
Key Features and Controls (front)
Flash head 
Remote release button 
Allows remote triggering of cameras compatible with the
LED light
Wireless sensor
Remote control transmitter 
*EOS Digital Rebel; Rebel XT, XTi; Rebel XSi; Rebel T1i, T2i, T3i; EOS 7D, EOS 5D Mark II (as of
E-TTL II Flash Range
The flash range will vary depending on the ISO setting, angle of coverage, and 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. The table on the reverse side provides a guide to minimum and maximum shooting ranges for the
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