Canon 50d Owners Manual

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3 File Numbering Methods
The file numbering restarts from 0001 each time the card is 
replaced or a new folder is created.
Whenever the card is replaced or a new folder created, the file 
numbering starts from 0001. This is  convenient if you want to organize 
images according to cards or folders.  If the replacement card or existing 
folder already contains images reco rded previously, the file numbering 
of the new images might continue from  the file numbering of the existing 
images in the card or folder. If you want to save images with the file 
numbering starting from 0001, use a  newly formatted card each time.
To reset the file numbering to 0001 or to start from file number 
0001 in a new folder
When you reset the file numbering manually, a new folder is created 
automatically and the file numbering of images saved to that folder starts 
from 0001. This is convenient when you want to use different folders for the 
images taken yesterday and the ones taken today, for example. After the 
manual reset, the file numbering returns to continuous or auto reset.
Auto Reset
Manual Reset
XXX-0051
Card-1
100-0001
Card-2
File numbering after  replacing the card
File numbering is reset
100 XXX-0051101XXX-0001Card-1
File numbering after  creating a folder
If folder No. 999 is created, [Folder number full] will appear on the LCD 
monitor. If that folder contains images  reaching file number 9999, shooting will 
not be possible even if the card still  has storage capacity. The LCD monitor will 
display a message to replace the card. Replace with a new card.
For both JPEG and RAW images, the  file name will start with “IMG_”. The 
extension will be “.JPG” for JPEG images and “.CR2” for RAW images.
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The color space refers to the range of reproducible colors. With this 
camera, you can set the color space for captured images to sRGB or 
Adobe RGB. For normal shooting, sRGB is recommended.
In the Basic Zone modes, sRGB is set automatically.
1Select [Color space].
 Under the [2 ] tab, select [Color 
space], then press < 0>.
2Set the desired color space.
  Select [ sRGB] or [Adobe RGB ], then 
press < 0>.
This color space is mainly used for commercial printing and other 
industrial uses. This setting is not  recommended if you do not know 
about image processing, Adobe RGB, and Design rule for Camera File 
System 2.0 (Exif 2.21). The image wi ll look very subdued in the sRGB 
personal computer environment and with printers not compatible with 
Design rule for Camera File System 2.0 (Exif 2.21). Post-processing of 
the image with software will therefore be required.
3  Setting the Color Space N
About Adobe RGB
 If the image is captured with the color space set to Adobe RGB, the file 
name will start with “_MG_” (first character is an underscore).
 
The ICC profile is not appended. The ICC profile is explained in the 
Software Instruction Manual in the CD-ROM.
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4
Setting the AF andDrive Modes
The viewfinder has 9 AF points. By 
selecting a suitable AF point, you 
can shoot with autofocus while 
framing the subject as desired.
You can also select the AF mode and drive mode best 
matching the shooting conditions and subject.
  The  M icon on the right of the page title indicates that the 
respective feature is avail able only in the Creative Zone 
modes ( d, s , f , a, 8 ).
  In the Basic Zone modes, the AF mode, AF point selection, 
and drive mode are set automatically.
 stands for auto focus. < MF> stands for manual focus.
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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 .
2Set the Mode Dial to a Creative 
Zone mode.
3Press the  button. (9 )
4Select the AF mode.
 While looking at the LCD panel, turn 
the < 6> dial.
X : One-Shot AF
9 : AI Focus AF
Z : AI Servo AF
Suited for still subjects. When you press the shutter button 
halfway, the camera will focus only once.
  When focus is achieved, the AF point  which achieved focus will flash 
in red, and the focus confirmation light < o> in the viewfinder will 
also light.
  With evaluative metering, the exposure setting will be set at the 
same time focus is achieved.
  While you hold down the shutter button halfway, the focus will be 
locked. You can then recompose the shot if desired.
  In the Creative Zone modes, AF is also possible by pressing the 
 button.
f: Selecting the AF Mode N
One-Shot AF for Still Subjects
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f: Selecting the AF Mode N
This AF mode is for moving subjects when the focusing distance 
keeps changing. While you hold down the shutter button halfway, 
the subject will be focused continuously.
 The exposure is set at the moment the picture is taken.
  In the Creative Zone modes, AF is also possible by pressing the 
 button.
  When the AF point selection is automatic (p.86), the camera first 
uses the center AF point to focus.  During autofocusing, if the subject 
moves away from the center AF po int, 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 pressed completely. Recompose the picture and try to 
focus again. Or see “When Autofocus Fails” (p.88).
  If the [ 1 Beep ] menu is set to [ Off], 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 conf irmation 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. However, the focus confirmation light 
< o > in the viewfinder will not light.
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Select one of the nine AF points to autofocus. In the Basic Zone and 
 modes, automatic AF point  selection will take effect 
automatically. You cannot select the AF point.
1Press the  button. (9 )
X The selected AF point will be 
displayed in the viewfinder and on the 
LCD panel.
  When all AF points light up, automatic 
AF point selection will be set.
2Select the AF point.
 To select an AF point, you can either 
turn the < 6> or < 5> dial or use 
< 9 >.
  When you turn the < 6> or < 5> 
dial, the AF point selection will 
change in the respective direction.
  When all AF points light up, automatic 
AF point selection will be set.
  The AF point selection will change in 
the direction you tilt the < 9>. If you 
keep tilting it in the same direction, it 
will toggle between manual and 
automatic AF point selection.
S  Selecting the AF Point N
Selecting with the Dial
Selecting with the Multi-controller
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S Selecting the AF Point N
Under low-light conditions, when you  press the shutter button halfway, 
the built-in flash fires a brief burst of  flashes. It illuminates the subject to 
enable easier autofocusing.
With lenses whose maximum aperture is larger than f/5.6
With all AF points, cross-type AF  sensitive to both vertical and 
horizontal lines is possible.
With lenses whose maximum aperture is larger than f/2.8*
With the center AF point, high-precisi on, cross-type AF sensitive to both 
vertical and horizontal lines is possible . The center AF point’s sensitivity 
to vertical and horizontal lines is about twice as sensitive as the other 
AF points.
The remaining eight AF points will work  as cross-type points with lenses 
brighter than f/5.6.
* Except with the EF28-80mm f/2.8-4L USM and EF50mm f/2.5 Compact Macro lenses.
AF-Assist Beam with the Built-in Flash
Lens’ Maximum Aperture and AF Sensitivity
  When looking at the LCD panel to select the AF point, note the following:
Automatic selection  , center , 
right ,  top 
  If focus cannot be achieved with the external, EOS-dedicated Speedlite’s 
AF-assist beam, select the center AF point.
 In the < 3>, < 5>, and < 7> modes, the AF-assist beam does not fire.
  The built-in flash’s AF-assist beam is  effective up to about 4 meters/13.2 
feet.
  In the Creative Zone modes when you pop-up the built-in flash with the 
 button, the AF-assist beam will be fired when necessary.
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Autofocus can fail to achieve focus (the focus confirmation light < o> 
blinks) with certain subjec ts such as the following:
Subjects difficult to focus
 Low-contrast subjects
(Example: Blue sky, solid-color walls, etc.)
  Subjects in low light
  Extremely backlit or  reflective subjects
(Example: Car with a reflective body, etc.)
  Near and far subjects covered by an AF point
(Example: Animal in a cage, etc.)
  Repetitive patterns
(Example: Skyscraper windows, computer keyboards, etc.)
In such cases, do one of the following:
(1) With One-Shot AF, focus an object at the same distance as the  subject and lock the focus before recomposing (p.50).
(2) Set the lens focus mode switch to < MF> and focus manually.
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.
When Autofocus Fails
Manual Focusing
If you press the shutter button halfway during manual focusing, the active 
AF point and the focus confirmation light < o> in the viewfinder will light 
when focus is achieved.
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Single and continuous drive modes are provided. In the Basic Zone modes, the optimum drive mode is set automatically.
1Press the  button. (9 )
2Select the drive mode.
 While looking at the LCD panel, turn 
the < 5> dial.
u :Single shooting
When you press the shutter button completely, one shot will be 
taken.
o :High-speed continuous shooting
 (Max. 6.3 shots per sec.)
i :Low-speed continuous shooting (Max. 3 shots per sec.)In the o  and i modes, the camera will shoot continuously 
while you hold down the shutter button completely.
j :Self-timer
 (10-sec. delay)l :Self-timer (2-sec. delay)
See the next page for the self-timer operation procedure.
i  Selecting the Drive Mode N
 When the internal buffer memory becomes 
full during continuous shooting, “ buSY” will 
be displayed on the LCD panel and in the 
viewfinder and shooting will be disabled 
temporarily. As the captured images  are recorded to the card, you will be 
able to shoot more images. Press t he shutter button halfway to check in 
the viewfinder’s bottom right for the current maximum burst. This is the 
maximum number of shots that can be taken continuously.
  If “FuLL CF ” is displayed in the viewfinder and on the LCD panel, wait 
until the access lamp stops blinking, then replace the card.
  When the battery level is low, the continuous shooting speed will be 
slightly slower.
  In the AI Servo AF mode, the continuous shooting speed may become 
slightly slower depending on the  subject and the lens used.
Maximum burst
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Use the self-timer when you want to be in the picture. The  (10 sec. timer) can be used in all shooting modes.
1Press the  button. (9 )
2Select the self-timer.
 Look at the LCD panel and turn the 
 dial.
j : 10-sec. self-timer
l : 2-sec. self-timer N
3Take the picture.
 Focus the subject and press the 
shutter button completely.
X You can check the self-timer 
operation with the self-timer lamp, 
beeper, and countdown display (in 
seconds) on the LCD panel.
X Two seconds before the picture is 
taken, the self-timer lamp will stay on 
and the beeper will sound faster.
j Self-timer Operation
  After taking self-timer shots, you should check the image for proper focus 
and exposure (p.132).
  If you will not look through the viewfinder when you press the shutter 
button, attach the eyepiece cover (p.105). If stray light enters the 
viewfinder when you press the shutter button, it may throw off the 
exposure.
  When using the self-timer to shoot only yourself, use focus lock (p.50) for 
an object at about the same distance as where you will be.
  To cancel the self-timer after it starts, press the < o        > button.
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