Canon Eos Rebel T2i 550d Instruction Manual

61
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...

62
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...

63
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...

64
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...

65
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,...

66
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...

67
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...

68
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....

69
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...

70
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...