Canon Eos Rebel T2i 550d Instruction Manual

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Reference
This chapter provides reference information for camera 
features, system accessories,  etc. The back of this 
chapter also has an index to  make it easier to look up 
needed information.
COPY  

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Autofocus can fail to achieve focus (the focus confirmation light  
blinks) with certain subjects such as the following:
Subjects difficult to focus
  Very low-contrast subjects
(Example: Blue sky, solid-color walls, etc.)
  Subjects in very low light
  Extremely backlit or reflective subjects
(Example: Car with a highly reflective body, etc.)
  Near and far subjects covered by an AF point 
(Example: Animal in a cage, etc.)
  Repetitive patterns
(Example: Skyscraper windows,  computer keyboards,...

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With the AC Adapter Kit ACK-E8 (sold separately), you can connect the 
camera to a household power outle t and not worry about the battery 
level.
1Connect the power cord.
 Connect the power cord as shown in 
the illustration.
  After using the camera, unplug the 
power plug from the power outlet.
2Connect the DC Coupler.
 Connect the cord’s plug to the DC 
Coupler.
3Insert the DC Coupler.
 Open the cover and insert the DC 
Coupler until it locks in place.
4Push in the DC cord.
 Open the DC cord hole...

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This remote controller enables you to take pictures wirelessly up to 
about 5 meters/16.4 feet from th e camera. You can either shoot 
immediately or use a 2-sec. delay.
  Set the self-timer to < Q> (p.71).
  Point the remote controller toward  the camera’s remote control 
sensor and press the transmit button.
X The camera will autofocus.
X When focus is achieved, the self-t imer lamp will light and the picture 
will be taken.
Remote Control Shooting
Remote Controller RC-6 (Sold separately)
Remote...

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Remote Control Shooting
This remote switch has a 60 cm/2.0 feet cord and enables you to press 
the shutter button halfway or comple tely. It connects to the camera’s 
remote control terminal.
If you take a picture without looking  at the viewfinder, light entering the 
eyepiece can throw off the exposure. To prevent this, use the eyepiece 
cover (p.23) attached to the camera strap.
During Live View shooting and  movie shooting, attaching the 
eyepiece cover is unnecessary.
1Remove the eyecup.
 Push...

206
Basically operates like a built-in flash for easy operation.
When an EX-series Speedlite (sold separately) is attached to the 
camera, almost all the autoflash control is done by the camera. In other 
words, it is like a high-output flash  attached externally in place of the 
built-in flash.
For detailed instructions, see the EX-series Speedlite ’s instruction 
manual. This camera is a Type-A camera that can use all the features 
of EX-series Speedlites.
External Speedlites
EOS-dedicated, EX-series...

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External Speedlites
 With an EZ/E/EG/ML/TL-series Speedlite set in TTL or A-TTL 
autoflash mode, the flash can be  fired at full output only.
Set the camera’s shooting mode to < a> (manual exposure) or 
< f > (aperture-priority AE) and adjust the aperture setting before 
shooting.
  When using a Speedlite which has  manual flash mode, shoot in the 
manual flash mode.
Sync Speed
The camera can synchronize with compact, non-Canon flash units at 
1/200 sec. or slower. Be sure to te st the flash unit...

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With a commercially-available Eye-Fi card already set up, you can 
automatically transfer captured images to a personal computer or 
upload them to an online service via a wireless LAN.
The image transfer is a function of the Eye-Fi card. To set up, use the 
card and to troubleshoot any image  transfer problems, refer to the Eye-
Fi card’s instruction manual or inquire the card’s manufacturer.
This product is not guaranteed to support Eye-Fi card 
functions (including wireless tr ansfer). In case of...

209
Using Eye-Fi Cards
5Check the [Access point SSID:].
 Check that an access point is 
displayed for [ Access point SSID: ].
  You can also check the Eye-Fi card’s 
MAC address and firmware version.
  Press the < M> button three 
times to exit the menu.
6Take the picture.
X The picture is transferred and the 
 icon switches from gray (Not 
connected) to the icons below.
  For transferred images,   is 
displayed in the detailed information 
display (p.58). 
H (Gray) Not connected : No connection with...

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o: Set automatically   k: User selectable    : Not selectable
Function Availability Table according to Shooting Modes
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