Canon Eos Rebel T3i 600d Instruction Manual

							181
3 Setting the FlashN
With [Built-in flash func. setting ] and [External flash func. setting], 
you can set the functions listed in  the table below. The functions 
displayed under [ External flash func. setting ] will vary depending on 
the Speedlite model.
 Select [Built-in flash func. setting ] 
or [ External flash func. setting ].
X The flash functions will be displayed. 
The functions not dimmed can be 
selected and set.
[Built-in flash func. setting] and [External flash func. 
setting] Settable Functions
*For [ FEB] (Flash exposure bracketing) and [ Zoom], refer to the Speedlite’s 
instruction manual.
[Built-in flash func. setting] an d [External flash func. setting]
Function
[Built-in flash func. setting ][External 
flash func. 
setting ]PageNormal
FiringEasy
Wireless  
(p.191)Custom
Wireless  
(p.194)
Flash modekk182
Shutter sync. kk182
FEB*k
Wireless flashkk189
Channelkk k 191
Flash groupk195
Flash exposure 
compensationkkkk104
Zoom*k
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							3 Setting the Flash N
182
 Shutter sync.
Normally, set this to [ 1st curtain] so that the flash fires immediately 
after the exposure starts.
If [ 2nd curtain ] is set, the flash will fire right before the exposure 
ends. When this is combined with  a slow sync speed, you can create 
a trail of light such as from car headlights at night. With 2nd-curtain 
sync, a preflash is fired w hen you press the shutter button 
completely. This is to determine the exposure. Then immediately 
before the exposure ends, the real flash is fired. Therefore, two 
flashes will be fired. However, with  shutter speeds faster than 1/30 
sec., 1st curtain sync will automatically take effect.
If an external Speedlite is attached, you can also set [ Hi-speed] 
( e ). For details, see the Speedlite’s instruction manual.
  Wireless flash
See “Wireless Flash Photography” on page 189.
  Flash exposure compensation
See “ y Flash Exposure Compensation” on page 104.
  Flash mode
You can select the flash mode to suit your desired flash shooting.
 [E-TTL II ] is the standard mode of 
EX-series Speedlites for automatic 
flash shooting.
  [Manual flash ] is for advanced users 
who want to set the [ Flash output] 
(1/1 to 1/128) themselves.
  Regarding other flash modes, refer to 
your Speedlite’s instruction manual.
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							183
3 Setting the FlashN
 Clear flash settings
With the [Built-in flash func. setting ] or [External flash func. 
setting ] screen displayed, press the < C> button to display the 
screen to clear the flash settings.  When you select [OK], the 
settings for the flash will be cleared.
The Custom Functions displayed under [ External flash C.Fn setting] 
will vary depending on the Speedlite model.
1Display the Custom Function.
  With the camera ready to shoot with 
an external Speedlite, select 
[External flash C.Fn setting ], then 
press < 0>.
2Set the Custom Function.
  Press the < U> key to select the 
function number, then set the 
function. The procedure is the same 
as setting the camera’s Custom 
Functions (p.250).
  To clear all the Custom Function 
settings, select [ Clear ext. flash C.Fn 
set. ] in step 1.
Setting the External Speedlite Custom Functions
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							184
Whenever you set the power switch to  or , the Self 
Cleaning Sensor Unit operates to aut omatically shake off the dust on 
the front of the sensor. Normally, you need not pay attention to this 
operation. However, you can execute  the sensor cleaning at anytime as 
well as disable it.
1Select [Sensor cleaning].
 Under the [ 6] tab, select [Sensor 
cleaning ], then press < 0>.
2Select [Clean nowf].
  Select [Clean now f], then press 
< 0 >.
  Select [OK ] on the dialog screen, 
then press < 0>.
X The screen will indicate that the 
sensor is being cleaned. Although 
there will be a shutter sound, a 
picture is not taken.
  In step 2, select [ Auto cleaningf] and set it to [ Disable].
X The sensor cleaning will no lon ger be executed when you set the 
power switch to < 1> or < 2>.
f Automatic Sensor Cleaning
Cleaning the Sensor Now
Disabling Automatic Sensor Cleaning
 For best results, do the sensor  cleaning while the camera bottom is 
placed on a table or  other flat surface.
  Even if you repeat the  sensor cleaning, the resu lt will not improve that 
much. Right after the sensor  cleaning is finished, the [Clean now
f] 
option will remain  disabled temporarily.
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							185
Normally, the Self Cleaning Sensor Unit will eliminate most of the dust 
that might be visible on captured im ages. However, in case visible dust 
still remains, you can append the Du st Delete Data to the image for 
erasing the dust spots later. The Dust  Delete Data is used by Digital 
Photo Professional (provided softwa re, p.302) to erase the dust spots 
automatically.
 Get a solid-white object (paper, etc.).
  Set the lens focal length to 50mm or longer.
  Set the lens focus mode switch to < MF> and set the focus to infinity 
( ∞ ). If the lens has no distance scale,  look at the front of the lens and 
turn the focusing ring clockwise all the way.
1Select [Dust Delete Data].
  Under the [ y] tab, select [Dust 
Delete Data ], then press < 0>.
2Select [OK].
  Select [OK ] and press < 0>. After 
the automatic self-cleaning of the 
sensor is performed, a message will 
appear. Although there will be a 
shutter sound, a picture is not taken.
3  Appending Dust Delete Data N
Preparation
Obtain the Dust Delete Data
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							3 Appending Dust Delete Data N
186
3Photograph a solid-white object.
 At a distance of 20 cm - 30 cm (0.7 ft. 
- 1.0 ft.), fill the viewfinder with a 
patternless, solid-white object and 
take a picture.
X The picture will be taken in aperture-
priority AE mode at an aperture of 
f/22.
  Since the image will  not be saved, the 
data can still be obta ined even if there 
is no card in the camera.
X
When the picture is taken, the camera 
will start collecting the Dust Delete 
Data. When the Dust Delete Data is 
obtained, a message will appear. Select 
[
OK], and the menu  will reappear.
 If the data was not obtained 
successfully, a message to that effect 
will appear. Follow the “Preparation” 
procedure on the pr eceding page, then 
select [
OK]. Take the picture again.
After the Dust Delete Data is obt ained, it is appended to all the JPEG 
and RAW images captured thereafter.  Before an important shoot, you 
should update the Dust Delete Data by obtaining it again.
For details about using Digital Phot o Professional (provided software, 
p.302) to erase dust spots, see the So ftware Instruction Manual (p.304) 
in the Software Instruction Manual CD-ROM.
The Dust Delete Data appended to the image is so small that it hardly 
affects the image file size.
About the Dust Delete Data
Be sure to use a solid-white object such  as a new sheet of white paper. If the 
paper has any pattern or design, it ma y be recognized as dust data and 
affect the accuracy of the du st deletion with the software.
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							187
Dust which could not be removed by the automatic sensor cleaning can 
be removed manually with a blower, etc.
The surface of the image sensor is extremely delicate. If the 
sensor needs to be cleaned directly, having it done by a Canon 
Service Center is recommended.
Before cleaning the sensor, det ach the lens from the camera.
1Select [Sensor cleaning].
 Under the [ 6] tab, select [Sensor 
cleaning ], then press < 0>.
2Select [Clean manually].
  Select [Clean manually], then press 
.
3Select [OK].
  Select [OK ], then press < 0>.
X In a moment, the reflex mirror will 
lockup and the shutter will open.
4Clean the sensor.
5End the cleaning.
  Set the power switch to < 2>.
3  Manual Sensor Cleaning N
 For the power source, usin g AC Adapter Kit ACK-E8 (sold separately) is 
recommended.
  If you use a battery, make sure it is fully recharged. If th e battery grip with 
size-AA/LR6 batteries is attached, manual sensor cleani ng will not be 
possible.
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							3 Manual Sensor Cleaning N
188
 While cleaning the sensor, never  do any of the following. If the 
power is cut off, the shutter will  close and the shutter curtains and 
image sensor might get damaged.
• Setting the power switch to < 2>.
• Opening the battery compartment cover.
• Opening the card slot cover.
  The surface of the image  sensor is extremely delicate. Clean the sensor 
with care.
  Use a plain blower without any brus h attached. A brush can scratch the 
sensor.
  Do not insert the blower tip inside th e camera beyond the lens mount. If 
the power is turned off, the shutter  will close and the shutter curtains or 
reflex mirror might get damaged.
  Never use canned air or gas to clea n the sensor. The blowing force can 
damage the sensor or the spray  gas can freeze on the sensor.
  If the battery level becomes low whil e you clean the sensor, the beeper 
will sound as a warning.  Stop cleaning the sensor.
  If a smudge that cannot be removed  with a blower remains, having the 
sensor cleaned by a Canon Se rvice Center is recommended.
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							189
Wireless FlashPhotography
You can use the built-in flash 
for wireless flash shooting.
The camera’s built-in flash  can work as a master unit 
with Canon Speedlit es having a wireless slave feature 
and wirelessly trigger the  Speedlite(s) to fire.
Canceling the slave unit’s auto power off
To cancel the slave unit’s auto power off, press the 
camera’s < A> button. If you are using manual flash 
firing, press the slave unit’s te st firing (PILOT) button to 
cancel the auto power off.
Be sure to also read the expl anations about wireless flash 
photography in th e Speedlite’s instruction manual.
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							190
Regarding your Speedlite (slave unit), refer to its instruction manual and 
set it as follows. The settings other than the below for the slave unit’\
s 
control are all set with the camera. Different types of Canon Speedlite 
slave units can be used and controlled together.
(1) Set the Speedlite as a slave unit.
(2) Set the Speedlite’s transmission channel to the same one as  the camera’s.
*1
(3) If you want to set the flash ratio  (p.196), set the slave unit ID.
(4) Position the camera and slave unit(s) within the range shown  below.
(5) Face the slave unit’s wirel ess sensor toward the camera.
*2
*1: If the Speedlite does not have a trans mission channel setting function, the 
camera can work with any channel.
*2: In small rooms, the slave unit may work  even if its wireless sensor does not face 
the camera. The camera’s wireless si gnals can bounce off the walls and be 
received by the slave unit. With EX-series Speedlite having a fixed flash head 
and wireless sensor, make sure it fires, then take the picture.
Using Wireless FlashN
Slave Unit Settings and Position
Approx. 10m
(32.8ft.)
Approx. 7m
(23.0ft.)
oApprox. 80 
Approx. 5m(16.4ft.) Approx. 7m
(23.0ft.)
Wireless flash set-up example
Indoors
Outdoors
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