Canon 50d Owners Manual

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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.
Attaching and Detaching a Lens
Attaching a Lens
EF-S lens mount index
EF lens mount index
Minimizing Dust
 When changing lenses, do it in  a place with minimal dust.
  When storing the camera without a lens attached, be sure to attach the 
body cap to the camera.
  Remove dust on the body cap before attaching it.
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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 carrying it 
around. Set the zoom ring to the 18mm 
wide-angle end, then slide the zoom ring 
lock lever to <
LOCK>. The zoom ring can 
be locked only at the wide-angle end.
About Zooming
Detaching the Lens
  Do not look at the sun directly th rough any lens. Doing so may cause 
loss of vision.
  If the front part (focusing ring) of t he lens rotates during autofocusing, do 
not touch the rotating part.
Image Conversion FactorSince the image sensor size is 
smaller than the 35mm film 
format, it will look  like the lens 
focal length is increased by 1.6x.Image sensor size(22.3 x 14.9mm / 0.88 x 0.59 in.)
35mm image size(36 x 24mm / 1.42 x 0.94 in.)
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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 may not be effect ive for excessive shaking such as 
on a rocking boat.
  With the EF-S17-85mm f/4-5.6 IS USM or EF28-135mm f/3.5-5.6 IS 
USM lens, the Image Stabilizer will not be very effective while you move 
the camera to take panned shots.
 The Image Stabilizer can operate with the focus mode switch set to 
either < AF> or < MF>.
  If the camera is mounted on a tripod , you can save battery power by 
switching the IS switch to < 2>.
  The Image Stabilizer can operate even when the camera is mounted on 
a monopod.
  Some IS lenses enable you to switch the IS mode manually to suit the 
shooting conditions. However, the EF-S18-200mm f/3.5-5.6 IS, EF-S
18-135mm f/3.5-5.6 IS, and EF-S18-55mm f/3.5-5.6 IS lenses switch the 
IS mode automatically.
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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 viewfinder.
6. To maintain a stable stance, place one foot in front of the other.
Basic Operation
Adjusting the Viewfinder Clarity
Holding the Camera
If the camera’s dioptric adjustment still cannot provide a sharp viewfinder 
image, using Dioptric Adjustment Lens E (10 types, sold separately) is 
recommended.
Vertical shooting
Horizontal shooting
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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 moment of exposure is called camera 
shake. Camera shake can cause blu rred pictures. To prevent camera 
shake, note the following:
   • Hold and steady the camera as shown on the previous page.
   • Press the shutter button halfway to autofocus, then press the 
shutter button completely.
Shutter Button
 In the Creative Zone modes, pressing the < p> button will be the 
same as pressing the shutter button halfway.
  If you press the shutter button completely without pressing it halfway first 
or if you press the shutter button halfway and then press it completely 
immediately, the camera will take a moment before it  takes the picture.
  Even during the menu display, image playback, and image recording, 
you can instantly go back to shooti ng-ready by pressing the shutter 
button halfway.
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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 < 6> dial to set the 
desired setting.
  Use this dial to set the shutter speed, 
aperture, etc.
The <
9> consists of a key with eight 
directions and a button at the center.
  Use it to select the AF point, correct 
the white balance, scroll the playback 
image during magnified view, operate 
the Quick Control screen, etc.
Also use it to select menu options 
(except [3 Erase images ] and [5 
Format ]).
 Using the Main Di al for Selecting
 Operating the Multi-controller
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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  < 5> dial only.
While looking at the viewfinder or LCD 
panel, turn the  dial to set the 
desired setting.
  Use this dial to set the exposure 
compensation amount, the aperture 
setting for manual exposures, etc.
 Using the Quick Control Dial for Selecting
You can also do step (1) when the power switch is set to < 1>.
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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 screen’s 
bottom.
  Turn the <
5> or < 6> dial to 
change the setting.
3Take the picture.
  Press the shutter button completely to 
take the picture.
X The LCD monitor turns off and the 
captured image is displayed.
Using the Quick Control Screen
Basic Zone modes
Creative Zone modes
If  [ 8C.Fn III -3: AF point selection method ] is set to [1: Multi-controller 
direct ] (p.179), the Quick Control screen cannot be displayed.
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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 (p.177)
Shooting mode (p.20)Exposure 
compensation/
AEB setting (p.102) Flash exposure 
compensation (p.109)
AF point (p.86) Picture Style (p.65) White balance (p.71)Metering mode (p.100)
Image-recording quality (p.60)
AF mode (p.84)Drive mode (p.89)
<
0 >Ð
 (Highlight tone priority) cannot be set with the Quick Control screen.
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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 Control Dial
< M > button
 Main DialLCD monitor
 button
8 Custom Functions
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