Canon Eos Rebel T2i 550d Instruction Manual

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d: Program AE
  Change the ISO speed or use the built-in flash.
To match the subject and ambient li ghting level, you can change the 
ISO speed (p.62) or use the bu ilt-in flash (p.64). In the  mode, 
the built-in flash will not fire auto matically. So under low light, press 
the < I> (Flash) button to pop up the built-in flash.
  The program can be shifted. (Program shift)
After pressing the shutter button halfway, turn the < 6> dial to 
change the shutter speed and aper ture setting combination 
(program). After you take the  picture, the program shift will be 
canceled. Program shift is not possible with flash.
Shooting Tips
Differences Between < d> and < 1> (Full Auto)With , many functions such the AF  mode, drive mode, and built-in 
flash are set automatically to prevent  spoiled shots. The functions you can 
set are limited. With < d>, only the shutter spee d and aperture are set 
automatically. You can free ly set the AF mode, drive mode, built-in flash, 
and other functions (p.210).
In very low light or very brig ht light, the shutter speed and 
aperture display will blink  when you press the shutter 
button halfway, as shown in the figure. In low light ( 30 
3.5 ), either increase the IS O speed (p.62) or use flash 
(p.64). In bright light ( 4000 22), decrease the ISO speed.
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Set the ISO speed (image sensor’s sensitivity to light) to suit the 
ambient light level. In the Basic Zone modes, the ISO speed is set 
automatically (p.63).
1Press the  button. (9 )
X [ISO speed ] will appear.
2Set the ISO speed.
 Turn the < 6> dial or press the 
< U > key to select the ISO speed.
  You can also set the ISO speed in the 
viewfinder while turning the < 6> 
dial.
  With “ AUTO ” selected, the ISO speed 
will be set automatically (p.63).
ISO Speed Guide
Z : Changing the ISO SpeedN
ISO SpeedShooting Situation
(No flash)Flash Range
100 - 400Sunny outdoorsThe higher the ISO 
speed, the  farther the 
flash range will be (p.64).400 - 1600Overcast skies or evening time
1600 - 6400, HDark indoors or night
  In the [ 7 Custom Functions (C.Fn) ] menu, if [Highlight tone priority ] 
is set to [1: Enable], the settable ISO  speed range will be ISO 200 - 6400 
(p.194).
  Using a high ISO speed or shooting  in high-temperature conditions may 
result in more grainy im ages. Long exposures can also cause irregular 
colors in the image.
  When you shoot at high ISO speeds,  noise (banding, dots of light, etc.) 
may appear.
In the [ 7 Custom Funct ions (C.Fn)] menu, if [ISO expansion ] is set to [1: 
On ], “H ” (equivalent to ISO 12800)  can also be set (p.192).
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Z: Changing the ISO Speed N
If the ISO speed is set to “AUTO”, the 
actual ISO speed to be set will be 
displayed when you press the shutter 
button halfway. As indicated below, the 
ISO speed will be set automatically to 
suit the shooting mode.
*1: Depending on the maximum  ISO speed that has been set.
*2: If fill flash results in  overexposure, ISO 100 or a higher  ISO will be set.
*3: In the < d/8 > modes and Basic Zo ne modes , ISO 400 - 
1600 will be set automatica lly if bounce flash is used with an external 
Speedlite. If the maximum IS O speed has been set to [400 ] or [800], the ISO 
speed will be set within this range.
For Auto ISO, you can set the ma ximum ISO speed within ISO 400 - 6400.
Under the [y] tab, select [ISO Auto ], 
then press < 0>. Select the ISO speed, 
then press < 0>.
About “AUTO” for Automatic ISO Speed
Shooting ModeISO Speed Setting
1 /7 /3/ 4/5 /6 /CAutomatically set within ISO 100 - 3200
d /s/ f/ a/8Automatically set within ISO 100 - 6400*1
2Fixed at ISO 100
With flashFixed at ISO 400*2*3
3  Setting the Maximum ISO Speed for Auto ISO N
When “AUTO” is set, the ISO speed will be displayed in whole-stop 
increments of 100, 200, 400, 800, 16 00, or 3200. However, the actual ISO 
speed may be set more precisely. Therefore, in the image’s shooting 
information, you may find an ISO sp eed like 125 or 640 displayed as the 
ISO speed.
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In indoors, low light, or backlit conditions in daylight, just pop up the 
built-in flash and press the shutter button to take flash pictures. In the 
< d > mode, the shutter speed (1/60 se c. - 1/200 sec.) will be set 
automatically to prevent camera shake.
1Press the  button.
  In Creative Zone modes, you can 
press the < D> button anytime to take 
flash pictures.
  While the flash is recycling, “ DbuSY ” 
is displayed in the viewfinder, and 
[BUSYD ] is displayed on the LCD 
monitor.
2Press the shutter button halfway.
  In the bottom left of the viewfinder, 
check that the < D> icon is lit.
3Take the picture.
  When focus is achieved and you 
press the shutter button completely, 
the flash will fire for the picture.
Effective Flash Range [Approx. in meters / feet]
D Using the Built-in Flash
ISO SpeedEF-S18-55mm f/3.5-5.6 IS lens  / EF-S18-135mm f/3.5-5.6 IS lens
Wide AngleTelephoto
1001 - 3.5 / 3.5 - 121 - 2.5 / 3.5 - 7.5
2001 - 5.5 / 3.5 - 171 - 3.5 / 3.5 - 11
400/AUTO1 - 7.5 / 3.5 - 241 - 4.5 / 3.5 - 15
8001 - 11 / 3.5 - 341 - 6.5 / 3.5 - 22
16001 - 15 / 3.5 - 491 - 9.5 / 3.5 - 31
32001 - 21 / 3.5 - 691 - 13 / 3.5 - 43
64001 - 30 / 3.5 - 971 - 19 / 3.5 - 61
H: 128001 - 42 / 3.5 - 1381 - 26 / 3.5 - 86
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D Using the Built-in Flash
 If the subject is far away, increase the ISO speed.
By increasing the ISO speed,  you can extend the flash range.
  In bright light, decrease the ISO speed.
If the exposure setting in the viewfi nder blinks, decrease the ISO speed.
 Detach the lens hood and keep at least 1 meter/3.3 feet away 
from the subject.
If the lens has a hood attached or  you are too close to the subject, 
the bottom of the picture might look dark due to the obstructed flash. 
For important shots, check the im age on the LCD monitor to make 
sure the flash exposure looks good (not dark at the bottom).
Using the red-eye reduction lamp  before taking a flash picture can 
reduce red eye.
Red-eye reduction will work in  any shooting mode except  < 3> 
 .
 Under the [ 1] tab, select [Red-eye 
reduc. ], then press < 0>. Select 
[Enable ], then press < 0>.
 
For flash photography, when you 
press the shutter button halfway, the 
red-eye reduction lamp will light. Then 
when you press the shutter button 
completely, the picture will be taken.
Shooting Tips
3  Using Red-eye Reduction
 The red-eye reduction feature is most  effective when the subject looks at 
the red-eye reduction lamp, when the  room is well lit, or when you go 
closer to the subject.
  When you press the shut ter button halfway, the 
viewfinder display on the bottom will gradually turn 
off. For best results, take  the picture after this display 
turns off.
  The effectiveness of red-eye reductio n varies depending on the subject.
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You can select the AF mode suiting the shooting conditions or subject. In 
the Basic Zone modes, the optimum AF mode is set automatically.
1On the lens, set the focus mode 
switch to .
2Press the  button.
X[AF mode ] will appear.
3Select the AF mode.
 Press the < U> key to select the AF 
mode, then press < 0>.
4Focus the subject.
  Aim the AF point over the subject and 
press the shutter button halfway. The 
camera will then autofocus in the 
selected AF mode.
Suited for still subjects. When you press the shutter button 
halfway, the camera will focus only once.
  When focus is achieved, the dot inside the AF point achieving focus 
lights briefly in red, and the focus confirmation light < o> in the 
viewfinder will also light.
  With evaluative metering (p.86), the exposure setting will be set at 
the same time focus is achieved.
  While you hold down the shutter bu tton halfway, the focus will be 
locked. You can then recompose the shot if desired.
E : Changing the AF Mode N
One-Shot AF for Still Subjects
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E: Changing the AF Mode N
This AF mode is for moving subjects when the focusing distance 
keeps changing. While you hold do wn the shutter button halfway, 
the subject will be focused continuously.
  The exposure is set at the moment the picture is taken.
  When the AF point selection (p.68) is automatic, the camera first 
uses the center AF point to focus.  During autofocusing, if the subject 
moves away from the center AF  point, focus tracking continues as 
long as the subject is covered by another AF point.
AI Focus AF switches the AF mode from One-Shot AF to AI Servo 
AF automatically if the still subject starts moving.
  After the subject is focused in the  One-Shot AF mode, if the subject 
starts moving, the camera will  detect the movement and change the 
AF mode automatically  to AI Servo AF.
AI Servo AF for Moving Subjects
AI Focus AF for Automatic Switching of AF Mode
 If focus cannot be achieved, the focus confirmation light < o> in the 
viewfinder will blink. If this occurs,  a picture cannot be taken even if the 
shutter button is presse d completely. Recompose  the picture and try to 
focus again. Or see “When  Autofocus Fails” (p.202).
  If the [ 1 Beep ] menu is set to [ Disable], the beeper will not sound when 
focus is achieved.
With AI Servo AF, the beeper will not sound even when focus is achieved. 
Also, the focus confirmation light  in the viewfinder will not light.
When focus is achieved in the AI  Focus AF mode with the Servo mode 
active, the beeper will sound softly. Ho wever, the focus confirmation light 
 in the viewfinder will not light.
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In the Basic Zone modes, all the AF points are active. Generally, the AF 
point covering the closest subject will be selected to focus. Therefore, 
the camera sometimes may not focus the subject you want.
With the < d> (Program AE), < s>, < f >, and < a> modes, you can 
select one AF point to focus where you want.
1Press the < S> button. (9 )
X The selected AF point will be 
displayed on the LCD monitor and in 
the viewfinder.
  When all AF points light up, automatic 
AF point selection will be set.
2Select the AF point.
 Press the < S> key to select the AF 
point.
  While looking at the viewfinder, you 
can select the AF point by turning the 
 dial until the desired AF point 
lights in red.
  Pressing < 0> toggles the AF point 
selection between the center AF point 
and automatic AF point selection.
3Focus the subject.
  Aim the selected AF point over the 
subject and press the shutter button 
halfway to focus.
S  Selecting the AF Point N
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S Selecting the AF Point N
 When shooting a portrait up close, use One-Shot AF and focus 
the eyes.
If you focus the eyes first, you c an then recompose and the face will 
remain sharp.
  If it is difficult to focus, se lect and use the center AF point.
The center AF point is the most se nsitive among the nine AF points. 
Also, with a fast lens  from f/1.0 to f/2.8, high-precision focusing is 
possible with the center AF point.
  To make it easier to focus a mo ving subject, set the camera to 
automatic AF point selection and AI Servo AF.
First use the center AF point to focus. If the subject moves away 
from the center AF point, the other AF points will continue to focus-
track the subject automatically.
1Set the lens focus mode switch to 
.
2Focus the subject.
  Focus by turning the lens focusing 
ring until the subject looks sharp in 
the viewfinder.
Shooting Tips
MF: Manual Focusing
Focusing ring
If you press the shutter button halfway  during manual focusing, the AF point 
achieving focus flashes in  red briefly, the beeper sounds, and the focus 
confirmation light < o> in the viewfinder will light.
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You can shoot up to about 3.7 shots per sec. This is effective for 
shooting a child running toward you or capturing the different facial 
expressions.
1Press the  button.
2Select < i>.
  Press the < U> key to select , 
then press < 0>.
3Take the picture.
  The camera shoots continuously 
while you hold down the shutter 
button fully.
  Also set the AF mode matching the subject.
• For moving subject When AI Servo AF is set, focusing will be continuous during 
continuous shooting.
• For still subjects When One-Shot AF is  set, the camera will focus only once during 
continuous shooting.
  Flash can also be used.
Since the flash will require recycl ing time, the continuous shooting 
speed will be slower.
i  Continuous Shooting N
Shooting Tips
 If the [ 7 Custom Functions (C.Fn) ] menu’s [High ISO speed noise 
reduction ] (p.193) is set to [2: Strong ], the maximum continuous 
shooting burst will greatly decrease.
  In AI Servo AF mode, the contin uous shooting speed may become 
slightly slower depending on  the subject and the lens used.
 
The continuous shooting speed might also  decrease indoors and under low light.
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