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 
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.
  AF is also possible by pressing the 
 button.
E: Selecting the AF Mode
Z  z  X
One-Shot AF for Still Subjects  
						

							
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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 picture is taken. This is for obtaining correct focus at the moment of exposure.
 When the AF point selection is automatic (p.84), 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 the Area AF.
  With a manually selected AF point,  the selected AF point will focus 
track the subject.
AI Servo AF for Moving Subjects
  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 and 
focus again. Or see “When Autofocus Fails” (p.86).
 
If the [2  Beep] menu is set to [Off], the beeper will not sound when focus is achieved.
Focus LockAfter achieving focus with One-Shot AF, you can lock the focus on a subject 
and recompose the shot. This is called “f ocus lock.” This is convenient when 
you want to focus a subject not covered by the Area AF.
With AI Servo AF, the beeper will not sound even when focus is achieved. Also, 
the focus confirmation light  in the viewfinder will not light.  
						

							
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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 selection will take effect.
 The AF point selection will follow the 
periphery as you turn the <
5> dial. If the 
current AF point is near the center, the AF 
point selection will follow an oval path. If 
the current AF point is along the periphery, 
the AF point selection will follow the 
periphery and stop at the top or bottom.
 By pressing , you can select the 
center AF point z automatic selection.
 When you press the shutter button 
halfway, the camera will be ready to shoot.
S  Selecting the AF Point
Automatic AF Point Selection
Manual AF Point Selection
Automatic AF point selection:  AF
Manual AF point selection: 
SEL /SEL AF
  The 26 Assist AF points are not user selectable.
 The  cannot be used to manually select any AF point other than the center AF point.  With C.Fn III -9 [ Selectable AF point ], the selectable AF points can be 
limited to the inner or outer 9 AF points. (p.170)
 
With C.Fn III -8 [AF expansion w/selected pt], the manually-selected AF point’s 
adjacent left and right AF points or the surrounding AF points can also be made active. (p.170)
  By registering the AF point you use frequently, you can switch to it 
instantly by setting C.Fn III -10-1 or C.Fn III -6-6 (p.171, 168).  
						

							
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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 EF28mm f/2.8.
With lenses whose maximum aperture is f/4 or larger
If the maximum aperture of the lens or Extender and lens combination 
is faster than f/4, the center AF point will work as a high-precision, 
cross-type point sensitive to both  horizontal and vertical lines. The 
remaining 18 AF points and the 26 Assist AF points work as horizontal-
line sensitive AF points.
With lenses whose maximum aperture is f/5.6 or larger
With lenses whose maximum aperture  is larger than f/5.6, all the AF 
points, including the Assist AF points,  will be horizontal-line sensitive only.
With lenses whose maximum aperture is f/8 or larger
With lenses whose maximum aperture is larger than f/8, AF will be 
possible with the center AF point which will be horizontal-line sensitive. 
AF will not work with the other AF points.
Lens’ Maximum Aperture and AF Sensitivity
Assist AF points
Cross-type points
When the EF70-200mm f/2.8L USM is used  with an Extender, use the center 
AF point only. The other AF points may cause a focusing error.
When using the EF24mm f/2.8 or EF28mm f/2.8 lens, 
the 13 AF points shown on the right can be used as 
cross-type points. The remaining 6 AF points will be 
horizontal-line sensitive.  
						

							
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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 following:
(1)  With One-Shot AF, focus an object at the same distance as the  subject and lock the focus before recomposing. (p.83)
(2)  Set the lens focus mode switch to < g> 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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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 page for the self- timer operation procedure.
6 : Silent single shooting
The shooting sound for single shooting is quieter than < u>.
R : Selecting the Drive Mode
 When the internal buffer memory becomes full during continuous 
shooting, “buSY” will be displayed on the top LCD panel and in the 
viewfinder and shooting will be disabled temporarily. As the 
captured images are recorded to the memory card, you will be able 
to shoot more images. Press the shutter button halfway to check in 
the viewfinder’s right for the current maximum burst. This is the 
maximum number of shots that can be taken continuously.
 If “Card * Full” is displayed in the viewfinder and on the top LCD panel, make 
sure to wait until the access lamp stops blinking, then replace the memory card.
Maximum  burst
If the battery level drops to about 10% (p.29), the drive mode icon ( o, 
p ,u ) will blink.  
						

							
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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 seconds before the picture 
is taken.
j Self-timer Operation
Do not stand in front of the camera when you press the shutter button to 
start the self-timer. Doing so prevents the camera from focusing the subject.
  Use a tripod when using the self-timer.
  Before starting the self-timer, look through the viewfinder or cover it with 
the eyepiece shutter (p.103).
  To cancel the self-timer after it starts, set the power switch to < 2>.
  When using the self-timer to shoot only yourself, use focus lock (p.83) for 
an object at about the same distance as where you will be.
  The 2-second self-timer is effective for close-ups or photo duplicating 
work to prevent camera shake (camera movement while the shutter 
button is pressed).  
						

							
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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 camera sets the 
proper exposure for the main subject.
w Partial metering
Effective when the background is much brighter 
than the subject due to backlighting, etc. The 
metering is weighted at the center covering about 
8.5% of the viewfinder area.
r Spot metering
This is for metering a specific part of the 
subject or scene. The metering is 
weighted at the center covering about 
2.4% of the viewfinder area.
q Metering Modes
When C.Fn I -7 [ Spot meter. link to AF point ] is set to [1:Enable (use 
active AF point) ], spot metering can be linked to the 19 (or 9 outer or inner 
points) AF points. (p.160)