Canon Eos Rebel T3i 600d Instruction Manual

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An easy, basic, and fully-automatic wireless flash shooting is explained 
below.Steps 1 to 4 and 6 apply to all 
wireless flash shooting. Therefore, 
these steps are omitted in the other 
wireless flash setups explained on 
the pages hereafter.
1Press the  button to raise the 
built-in flash.
  For wireless flash shooting, be sure 
to raise the built-in flash.
2Select [Flash control].
 Under the [ 1] tab, select [Flash 
control ], then press < 0>.
3Select [Evaluative].
  For [ E-TTL II meter. ], select 
[Evaluative ], then press < 0>.
Easy Wireless Flash Shooting
Fully Automatic Shooting with One External Speedlite
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Easy Wireless Flash Shooting
4Select [Built-in flash func. 
setting].
 Select [Built-in flash func. setting ], 
then press < 0>.
5Select [EasyWireless].
  For [ Built-in flash ], select 
[EasyWireless ], then press .
6Set [Channel].
  Set the channel (1-4) to the same one 
as the slave unit.
7Take the picture.
 As with normal flash shooting, you 
can set the camera and take the 
picture in the same way.
8Exit the wireless flash shooting.
 For [ Built-in flash func. setting ], 
select [NormalFiring ].
 Setting [ E-TTL II meter. ] to [Evaluative ] is recommended.
  With [ EasyWireless ], even if you disable the built -in flash from firing, it 
will still fire to control the slave un it. Depending on shooting conditions, 
the flash fired to control the slav e unit may appear in the picture.
  Firing a test flash is not po ssible with the slave unit.
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							193
Easy Wireless Flash Shooting
You can have multiple slave units fire as if they were a single Speedlite. 
Convenient when you need a large flash output.
Basic settings:
Flash mode : E-TTL II
E-TTL II meter. : Evaluative
Built-in flash : EasyWireless
Channel : (Same as slave units)
All the slave units will fire at the same 
output and be controlled to obtain a 
standard exposure.
No matter what the slave ID is (A, B, or 
C), all the slave units will fire as one 
group.
If the flash exposure looks too dark  or too bright, you can set flash 
exposure compensation to adjus t the slave units’ flash output.
  Select [Flash exposure 
compensation], then press < 0>.
  If the flash exposure is too dark, 
press the < Z> key to increase the 
flash exposure and make it brighter. If 
the flash exposure is too bright, press 
the < Y> key to decrease the flash 
exposure and make it darker.
Fully-automatic Shooting with Multiple External Speedlites
Flash Exposure Compensation
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							194
This describes fully-automatic wireless 
flash shooting with one external 
Speedlite and the built-in flash.
You can change the flash ratio between 
the external Speedlite and built-in flash 
to adjust how the shadows look on the 
subject.
On the menu screens, the  and 
< 1 > icons refer to the external 
Speedlite, and the < 3> and < 2> 
icons refer to the built-in flash.
1Select [CustWireless].
  Follow step 5 on page 192 to select 
[CustWireless ], then press .
2Select [Wireless func.].
  For [ Wireless func. ], select [0:3 ], 
then press < 0>.
3Set the desired flash ratio and 
take the picture.
 Select [0:3] and set the flash ratio 
within 8:1 to 1:1. Setting a flash ratio to 
the right of 1:1 (up to  1:8) is not possible.
 If the built-in flash output is not 
enough, set a higher  ISO speed (p.79).
Custom Wireless Flash Shooting
Fully-automatic Shooting with One External Speedlite and 
Built-in Flash
The 8:1 to 1:1 flash ratio is equiva lent to 3:1 to 1:1 stops (1/2-stop 
increments).
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							195
Custom Wireless Flash Shooting
Multiple Speedlite slave units can be treated as one flash unit or 
separated into slave groups whose flash ratio can be set.
The basic settings are shown below. By changing the [Firing group] 
setting, you can shoot with various wir eless flash setups with multiple 
Speedlites.
Basic settings:
Flash mode : E-TTL II
E-TTL II meter. : Evaluative
Wireless func. : 0
Channel : (Same as slave units)
[1 All] Using multiple slave Speedlites as one flash unit
Convenient when you need a large flash 
output. All the slave Speedlites will fire at 
the same output and be controlled to 
obtain a standard exposure.
No matter what the slave ID is (A, B, or 
C), all the slave units will fire as one 
group.
Set [Firing group] to [1 All], then 
take the picture.
Fully-automatic Shooting with Multiple External Speedlites
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							196
Custom Wireless Flash Shooting
[1  (A:B)] Multiple slave units in multiple groups
Divide the slave units into groups A and 
B, and change the flash ratio to obtain 
the desired lighting effect.
Refer to your Speedlite’s instruction 
manual to set one slave unit’s slave ID 
to A (Group A) and the other slave unit’s 
ID to B (Group B) and position them as 
shown in the illustration.
1Select [Wireless func.].
  Follow step 2 on page 194 to select 
[0 ], then press < 0>.
2Set [Firing group] to [1  (A:B)].
3Set the desired flash ratio and 
take the picture.
 Select [A:B fire ratio ] and set the 
flash ratio.
A B
If [Firing group ] is set to [1 (A:B) ], group C will not fire.
The 8:1 to 1:1 to 1:8 flash ratio is equi valent to 3:1 to 1:1 to 1:3 stops (1/2-
stop increments).
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Custom Wireless Flash Shooting
The built-in flash can also be added to wireless flash shooting explained 
on pages 195-196.
The basic settings are shown below. By changing the [ Firing group] 
setting, you can shoot with various wireless flash setups of multiple 
Speedlites complemented with the built-in flash.
1Basic settings:
Flash mode : E-TTL II
E-TTL II meter. : Evaluative
Wireless func. : [ 0+3 ]
Channel : (Same as slave units)
2Select [Firing group].
 Select the firing group, then set the 
flash ratio, flash exposure 
compensation, and other necessary 
settings before shooting.
Fully-automatic Shooting with the Built-in Flash and 
Multiple External Speedlites
A B
[1 All and  2][ 1 (A:B)  2]
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When [Flash mode] is set to [E-TTL II], flash exposure compensation 
can be set. The flash exposure  compensation settings (see below) 
which can be set will differ depending on the [ Wireless func.] and 
[Firing group ] settings.
[Flash exp. comp]
 The flash exposure compensation is 
applied to the built-in flash and all 
external Speedlites.
[2  exp. comp.]
 The flash exposure compensation is 
applied to the built-in flash.
[1  exp. comp.]
 The flash exposure compensation is 
applied to all external Speedlites.
[A,B exp. comp.]
 The flash exposure compensation is 
applied to both groups A and B.
If [ Flash mode ] is set to [E-TTL II], you can press the < A> button to 
perform FE lock.
Other Settings
Flash Exposure Compensation
FE Lock
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Other Settings
When [Flash mode ] is set to [Manual flash ], the flash output can be set 
manually. The flash output settings ([ 1 flash output ], [Group A 
output ], etc.) that can be set wi ll differ depending on the [ Wireless 
func. ] setting (see below).
[Wireless func.:  0]
 [Firing group:  1All]: The manual 
flash output setting will be applied to 
all the external Speedlites.
  [Firing group:  1  (A:B) ]: You can set 
the flash output separately for slave 
groups A and B.
[Wireless func.:  0+3]
  [Firing group:  1All and  2]: The 
flash output can be set separately for 
the external Speed lite(s) and built-in 
flash.
  [Firing group:  1  (A:B)  2]: You can 
set the flash output separately for 
slave groups A and B. You can also 
set the flash output for the built-in 
flash.
Setting the Flash Output Manually for Wireless Flash
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