Canon Mark 3 User Manual

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3
Setting the AF andDrive Modes
The Area AF has 45 AF points 
(19 high-precision cross-type 
points and 26 Assist AF points). 
You can select any one of the 19 
cross-type points to match your 
composition.
You can also select the AF mode to match the shooting 
conditions and subject and select the best drive mode.
< f > stands for auto focus. < g> stands for manual focus.  

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Select the AF mode suiting the shooting conditions or subject.
1On the lens, set the focus mode 
switch to <
f>.
2Press the  button. 
(9 )
3Select the AF mode.
 Turn the < 6> dial to select the AF 
mode.
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 wi ll flash in red, 
and the focus confirmation light < o> 
in the viewfinder will also light.
  With evaluative metering, the...

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E: Selecting the AF Mode
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.
  AF is also possible by pressing the 
 button.
Focus Tracking with AI Servo AF
If the subject approaches or retreats from the camera at a constant rate, the 
camera tracks the subject and predicts the focusing distance immediately before 
the...

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From among the 45 AF points, the camera selects the AF point 
automatically to suit the shooting conditions.
You can manually select any of the 19 cross-type AF points.  This is 
best when you want to focus the target subject at will, or autofocus 
quickly while composing the shot.
1Press the < S> button. (9 )
X
The current AF point will light in the viewfinder.
2Select the AF point.
 To select a horizontal AF point, turn the  
dial. If all the peripheral AF points light up, 
automatic AF point...

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S Selecting the AF Point
The EOS-1Ds Mark III can execute  high-precision AF with lenses 
whose maximum aperture is f/2.8 or larger.
With f/2.8 and faster lenses*
With the 19 AF points indicated by  , 
high-precision, cross-type AF (both 
horizontal- and vertical-line sensitive) is 
possible. With cross-type AF, vertical-line 
detection is about 2 times as sensitive as 
horizontal-line detection. The remaining 
26 Assist AF points are horizontal-line 
sensitive only
.* Excluding the EF24mm f/2.8 and...

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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 and  reflective subjects
Example: Car with a reflective body, etc.
  Overlapping near and far objects
Example: Animal in a cage, etc.
  Repetitive patterns
Example: Skyscraper windows, computer keyboards, etc.
In such cases, do one of the...

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1Press the  button. (9)
2Select the drive mode.
 While looking at the top 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. 5 shots per sec.)p : Low-speed continuous 
shooting
 (Max. 3 shots per sec.)
In the o and p modes, the 
camera will shoot continuously 
while you hold down the shutter 
button completely.
k : Self-timer  (10-sec. delay)
l : Self-timer  (2-sec. delay)
See the next...

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1Press the  button. 
(9 )
2Select either < k> or < l>.
 Look at the top LCD panel and turn 
the < 5> dial to select < k> or 
< l >.
k : 10-sec. self-timer
l : 2-sec. self-timer
3Take the picture.
  Focus the subject and press the 
shutter button completely.
X The self-timer lamp will blink, and 10 
sec. or 2 sec. later, the picture will be 
taken.
X During the self-timer operation, the 
top LCD panel counts down the 
seconds until the picture is taken.
X The lamp’s blinking will become 
faster two...

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4
Exposure Control
Select the shooting mode to suit the subject or shooting 
objective. You can set the shutter speed and/or aperture 
to obtain the exposure you want.
Also, with an EX-series Speedlite, you can take flash 
pictures as easily as normal shooting without flash.
First set the power switch to .  

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1Press the  button. (9 )
2Select the metering mode.
 While looking at the top LCD panel, 
turn the < 6> dial.
q : Evaluative metering
w : Partial metering
r : Spot metering
e : Center-weighted average 
metering
q  Evaluative metering
This is the camera’s standard metering mode 
suited for most subjects even under backlit 
conditions. After detecting the subject’s position 
in the viewfinder, the brightness, background, 
front and back lighting conditions, and other 
complex lighting elements, the...