Canon 50d Owners Manual

31
1Remove the caps.
 Remove the rear lens cap and the 
body cap by turning them as shown 
by the arrow.
2Attach the lens.
 Align the EF-S lens with the camera’s 
white EF-S lens mount index and turn 
the lens as shown by the arrow until it 
clicks in place.
 
When attaching a lens other than an 
EF-S lens, align the lens with the red 
EF lens mount index.
3On the lens, set the focus mode 
switch to  (autofocus).
  If it is set to  (manual focus), 
autofocus will not operate.
4Remove the front lens cap....

32
Attaching and Detaching a Lens
To zoom, turn the zoom ring on the lens 
with your fingers.
If you want to zoom, do it before 
focusing. Turning the zoom ring after 
achieving focus may throw off the 
focus slightly.
While pressing the lens release 
button, turn the lens as shown by 
the arrow.
 Turn the lens until it stops, then 
detach it.
 
Attach the dust cap to the detached lens.
To owners of the EF-S18-200mm f/3.5-5.6 IS kit lens:
You can prevent the zoom ring from 
extending out while you are...

33
The procedure explained here is based on the EF-S17-85mm f/4-5.6 IS 
USM lens as an example.
*  IS stands for Image Stabilizer.
1Set the IS switch to .
 Set the camera’s power switch to 
.
2Press the shutter button halfway.
XThe Image Stabilizer will operate.
3Take the picture.
  When the picture looks steady in the 
viewfinder, press the shutter button 
completely to take the picture.
About the Lens Image Stabilizer
  The Image Stabilizer is not effective for moving subjects.
  The Image Stabilizer...

34
Turn the dioptric adjustment 
knob.
 Turn the knob left or right so that the 
nine AF points in the viewfinder look 
sharp.
To obtain sharp images, hold the camera still to minimize camera 
shake.
1. Wrap your right hand around the camera grip firmly.
2. Hold the lens bottom with your left hand.
3. Press the shutter button lightly with your right hand’s index finger.
4. Press your arms and elbows lightly  against the front of your body.
5. Press the camera against your face and look through the...

35
Basic Operation
The shutter button has two steps. You can press the shutter button 
halfway. Then you can further press the shutter button completely.
Pressing halfway
This activates autofocusing and 
automatic exposure metering that sets 
the shutter speed and aperture.
The exposure setting (shutter speed and 
aperture) is displayed on the LCD panel 
and in the viewfinder (0).
Pressing completely
This releases the shutter and takes the 
picture.
Preventing Camera Shake
Camera movement during the...

36
Basic Operation
(1)After pressing a button, turn the 
< 6 > dial.
When you press a button, its function 
remains selected for 6 seconds ( 9). 
During this time, you can turn the < 6> 
dial to set the desired setting.
When the function turns off or if you 
press the shutter button halfway, the 
camera will be ready to shoot.
  Use this dial to select or set the 
metering mode, AF mode, ISO 
speed, AF point, etc.
(2)Tu r n  t h e  < 6> dial only.
While looking at the viewfinder or LCD 
panel, turn the <...

37
Basic Operation
Before using the  dial, set the power switch to .
(1)After pressing a  button, turn the 
< 5 > dial.
When you press a button, its function 
remains selected for 6 seconds ( 9). 
During this time, you can turn the <
5> 
dial to set the desired setting.
When the function turns off or if you 
press the shutter button halfway, the 
camera will be ready to shoot.
  Use this dial to select or set the white 
balance, drive mode, flash exposure 
compensation, AF point, etc.
(2)Tu r n  t h e  <...

38
The shooting settings are displayed on the LCD monitor where you can 
quickly select and set the functions.  This is called the Quick Control 
screen.
1Display the Quick Control screen.
 Press < 9> straight down.
X The Quick Control screen will appear 
(10 sec.).
2Set the desired setting.
  Use < 9> to select the function.
  In the Basic Zone modes, you can 
select certain drive modes (p.89) and 
the image-recording quality (p.60).
X A brief description of the selected 
function is displayed on the...

39
Using the Quick Control Screen
 On the Quick Control screen, select 
the function and press . The 
respective setting screen will then 
appear (except for the shutter speed 
and aperture).
  Turn the <
5> or < 6> dial to 
change the setting. For some 
functions, you can also use < 9> to 
change the setting.
  Press < 0> to return to the Quick 
Control screen.
Quick Control Scr een Nomenclature
Function Setting Display
Shutter speed (p.94)Aperture (p.96)
ISO speed (p.63)
Highlight tone priority...

40
By setting various functions with the menus, you can set the image-
recording quality, date/time, etc. While looking at the LCD monitor, you use 
the  button on the camera back and the   dials.
Menu Operations
* The [2/8 /9] tabs are not displayed in the Full Auto and Basic Zone modes. When a Basic Zone mode is set, there are menu items which are not displayed.
Creative Zone Mode Menu Screen
Ta b
Menu items Menu settings
1 Shooting
5 Set-up
9 My Menu
3 Playback
Basic Zone Mode Menu Screen
<
5 > 
Quick...