Canon 5246B002 Leaflet

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.

For cameras with built-in flash:
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]
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. 

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).

Full Auto, P, 

A-DEP

Set automatically (1/x sec. – 1/60 sec.)

Automatic

TV

Set manually (1/x sec. – 30 sec.)

Automatic

AV

Set automatically (1/x sec. – 30 sec.)

Manual

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-

of-field but require more flash power and reduce the 

maximum flash range. 

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.

APS-C size sensor 

(Rebel series, 60D, 7D)

15mm or longer lens

32mm or longer 

lens

Full-frame sensor 

(EOS 5D & 1Ds series)

24mm or longer lens

50mm or longer 

lens

Allows remote triggering of 

cameras compatible with the 

RC-1, RC-5, or RC-6 Remote 

Controllers*
LED light
Wireless sensor
Remote control transmitter

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 

EF-S 18-55mm f/3.5-5.6 IS zoom. Do not use the 320EX in 

the extended position at a focal length of 18mm or less, or 

the edges of the frame will be darker than the center.

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. 

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.