Canon 50d Owners Manual

121
Three AF modes are provided: [Quick mode], [Live mode] (p.123), 
and [ Liveu mode ] (face detection) (p.124). If you want to achieve 
precise focusing, magnify the  image and focus manually (p.127).
Select the AF mode.
 Under [ 6 Live View function 
settings ], select [ AF mode].
 
While the Live View image is 
displayed, if you press the  
button, you can also select the AF 
mode with the <
6> dial.
The dedicated AF sensor is used to focus in the One-Shot AF mode 
(p.84) in the same way (AF method...

122
Using AF to FocusN
2Select the AF point.
 Press the  button, then 
use < 9> to select the AF point.
  If you keep tilting < 9> in the same 
direction, it will toggle between 
manual and automatic AF point 
selection.
3Focus the subject.
  Aim the AF point over the subject, 
and hold down the < p> button.
X The Live View image will turn off, the 
reflex mirror will go back down, and 
AF will be executed.
X When focus is achieved, the beeper 
will sound and the Live View image 
will reappear.
The AF...

123
Using AF to FocusN
The image sensor is used to focus. Although AF is possible with the 
Live View image displayed, the AF operation will take longer than 
with Quick mode . Also, achieving focus may be more difficult than with 
Quick mode.
1Display the Live View image.
 Press the < A> button.
X The Live View image will appear on 
the LCD monitor.
  The AF point < > will appear.
  You can use < 9> to move the AF 
point to where you want to focus (it 
cannot go to the edges of the picture). 
If you...

124
Using AF to FocusN
With the same AF method as with the Live mode, the human face is 
detected and focused. Have the person face the camera.
1Display the Live View image.
 Press the < A> button.
X The Live View image will appear on 
the LCD monitor.
 
When a face is detected, the  frame 
will appear over the face to be focused.
 If multiple faces are detected,  will 
be displayed. Use the <
9> to move 
the <
q> frame over the target face.
2Focus the subject.
  Press the < p> button to focus 
the face...

125
Using AF to FocusN
AF operation
 It will take a slightly longer time to focus.
  Even when focus has been achieved, pressing the < p> button 
will focus again.
 
The image brightness may change during and after the AF operation. If the image flickers, making it difficult to focus, stop and resume the Live 
View shooting under the actual light source to be used. Check that the 
flickering has stopped, then autofocus.
  If you press the < u> button in the Live mode, the AF point area will 
be...

126
Using AF to FocusN
Shooting conditions which can make focusing difficult:
 Low-contrast subjects such as the  blue sky and solid-color surfaces.
  Subjects in low light.
  Stripes and other patterns where there is contrast only in the 
horizontal direction.
  Under a light source whose brightness, color, or pattern keeps 
changing.
  Night scenes or points of light.
  Under fluorescent lighting or when the image flickers.
  Extremely small subjects.
  Subjects strongly reflecting light.
  The AF...

127
Magnify the image and focus manually. 
1Set the lens focus mode switch to 
.
  Turn the lens focusing ring to focus 
roughly.
2Move the magnifying frame to the 
position where you want to focus.
 Use < 9> to move the magnifying 
frame.
  If you press < 9> straight down, it 
will return to the image center.
3Magnify the image.
  Press the < u> button.
X The image within the magnifying 
frame will be magnified.
  Each time you press the  button, 
the view will change as follows:
4Focus manually....

128
Instructions for setting the [6 Live View 
function settings ] menu’s [Silent shoot. ] 
are explained below.
  Mode 1
The shooting operation noise is qui eter than the normal shooting. 
Continuous shooting is also  possible. High-speed continuous 
shooting will be approx. 5.8 fps.
  Mode 2
When you press the shutter button completely, only one shot will be 
taken. While you keep holding down the shutter button, the camera 
operation will be suspended. Then when you return to the shutter 
button’s...

129
Notes about the Live View image Under low light or bright light conditions, the Live View image might not 
reflect the brightness of the captured image.
  If the light source within the image changes, the screen might flicker. If 
this happens, stop and resume the Live  View shooting under the actual 
light source to be used.
  If you point the camera in a different direction, it might throw off the Live 
View image’s correct brightness momentarily. Wait until the brightness 
level stabilizes before...

130
Notes about Custom Functions Live View shooting will disable some  Custom Function settings (p.173).
  If [8 C.Fn II -4: Auto Lighting Optimizer ] (p.177) is not set to [3: 
Disable ], the image will look bright even if a decreased exposure 
compensation has been set.
Notes about lenses and flash  The focus preset feature on super  telephoto lenses cannot be used.
  FE lock is not possible when the built-in flash or external Speedlite is 
used. Modeling flash is not possible when external Speedlite...