Canon Camera Eos 5d Mark Iii User Manual

							101
3 Customizing AF Functions N
You can set the AF area selecti on mode and manually-selected AF 
point separately for vertical shooting and horizontal shooting.
: Same for both vert/horiz
The same AF area selection mode and 
manually-selected AF point (or Zone) are 
used for both vertical shooting and 
horizontal shooting.
: Select separate AF points
The AF area selection mode and manua lly-selected AF point (or Zone) 
can be set separately for each camera orientation (1. Horizontal, 2. 
Vertical with the camera grip at the to p, 3. Vertical with the camera grip 
at the bottom). Convenient when, fo r instance, you want to keep using 
the right AF point during all camera orientations.
When you manually select the AF area selection mode and AF point (or 
Zone with Zone AF) for each of the  three camera orientations, they will 
be set for the respective orientation. Whenever you c hange the camera 
orientation, the camera will switch  to the AF area selection mode and 
manually-selected AF point (or Zone) set for that orientation.
Orientation linked AF point
If you clear the camera se ttings to their defaults (p.56), the setting will be 
[ Same for both vert/horiz ]. Also, your settings for the three camera 
orientations will be cleared and all th ree will revert to Single-point AF 
(Manual selection) with the  center AF point selected.
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							102
3 Customizing AF Functions N
During manual AF point selection, the selection can either stop at the 
outer edge or it can move to the op posite AF point. This function works 
in AF area selection modes other than 61-point automatic selection AF 
and Zone AF. (It works in 61-point automatic selection AF only with AI 
Servo AF.)
: Stops at AF area edges
Convenient if you often use an AF point 
along the edge.
: Continuous
Instead of stopping at  the outer edge, the 
selected AF point continues to the 
opposite side.
You can set whether or not to disp lay the AF point(s) in the following 
cases: 1. When selecting the AF point (s), 2. When the camera is ready 
to shoot (before AF operation), 3.  During AF operation, and 4. When 
focus is achieved.
: Selected (constant)
The selected AF point(s) is always 
displayed.
: All (constant)
All 61 AF points are always displayed.
: Selected (pre-AF, focused)
The selected AF point(s) is displayed for 1, 2, and 4.
: Selected (focused)
The selected AF point(s) is displayed for 1 and 4.
OFF: Disable display
For 2, 3, and 4, the selected  AF point(s) will not be displayed.
25
Manual AF point selection pattern
AF point display during focus
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							103
3 Customizing AF Functions N
The AF points and grid in the viewfin der can be illuminated in red when 
focus is achieved.
AUTO: Auto
The AF points and grid are automatically 
illuminated in red under low light.
ON: Enable
The AF points and grid are illuminated in 
red regardless of the ambient light level.
OFF: Disable
The AF points and grid are not 
illuminated in red.
You can make fine adjustments for the  AF’s point of focus. For details, 
see “Fine Adjustment of AF’s  Point of Focus” on page 104.
VF display illumination
If [Selected (pre-AF, focused) ] or [Selected (focused) ] is set, the AF point 
will not be displayed even when fo cus is achieved with AI Servo AF.
AF Microadjustment
The setting here is not ap plied to the electronic level display (p.59) in the 
viewfinder.
When you press the  button, the AF points and grid will be illuminated 
in red regardless  of this setting.
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							104
Fine adjustment of the AF’s point of focus is possible for viewfinder 
shooting and Live View shooting in  the Quick mode. This is called “AF 
Microadjustment”. Before making the adjustment, read “Notes for AF\
 
Microadjustment” on page 109.
Normally, this adjustment is not required. Do this adjustment 
only if necessary. Note that doing  this adjustment may prevent 
correct focusing from being achieved.
Set the adjustment manually by ad justing, shooting, and checking the 
result. Repeat this until the desi red adjustment is made. During AF, 
regardless of the lens used, the poin t of focus will always be shifted by 
the adjustment amount.
1Select [AF Microadjustment].
  Under the [ 25] tab, select [ AF 
Microadjustment], then press < 0>.
2Select [All by same amount].
  Turn the < 5> dial to select [ All by 
same amount ].
3Press the  button.
XThe [ All by same amount ] screen 
will appear.
3 Fine Adjustment of AF’s Point of FocusN
Adjust All by Same Amount
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							105
3 Fine Adjustment of AF’s Point of Focus N
4Make the adjustment.
 Turn the < 5> dial to make the 
adjustment. The adjustable range is 
±20 steps.
  Setting it toward “–: ” will shift the 
point of focus in front of the standard 
point of focus.
  Setting it toward “+: ” will shift the 
point of focus to the rear of the 
standard point of focus.
  After making the adjustment, press 
.
  Turn the < 5> dial to select [ All by 
same amount ], then press . 
The menu will reappear.
5Check the result of the 
adjustment.
  Take a picture and play back the 
image (p.244) to check the 
adjustment result.
  When the resulting picture is focused 
in front of the targeted point, adjust 
toward the “+: ” side. When the 
resulting picture is focused behind the 
targeted point, adjust toward the “–
: ” side.
  If necessary, do the adjustment 
again.
If [All by same amount ] is selected, AF adjustment  will not be possible for 
the wide-angle and telephot o ends of zoom lenses.
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							106
3 Fine Adjustment of AF’s Point of Focus N
You can make the adjustment for each lens and register the adjustment 
in the camera. You can register the adjustment for up to 40 lenses. 
When you autofocus with a lens whos e adjustment has been registered, 
the point of focus will always be  shifted by the adjustment amount.
Set the adjustment manually by ad justing, shooting, and checking the 
result. Repeat this until the desir ed adjustment is made. If you use a 
zoom lens, make the adjustment for the wide-angle (W) and telephoto 
(T) ends.
1Select [Adjust by lens].
  Turn the < 5> dial to select [ Adjust 
by lens ].
2Press the < B> button.
XThe [ Adjust by lens ] screen will 
appear.
3Check and change the lens 
information.
Check the lens information.
  Press the < B> button.
X
The screen will show th e lens name and a 10-
digit serial number. When  the serial number is 
displayed, select [
OK] and go to step 4. If the lens’ serial number cannot be 
confirmed, “0000000000” will be displayed. 
Enter the number as indicated below. See 
the next page about the asterisk “ * ” 
displayed in front of  the lens serial number.
Adjust by Lens
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							107
3 Fine Adjustment of AF’s Point of Focus N
Enter the serial number.
 Turn the < 5> dial to select the digit, 
then press < 0> to display < r>.
  Turn the < 5> dial to enter the 
number, then press < 0>.
  After entering all the digits, turn the 
 dial to select [ OK], then press 
< 0 >.
About the Lens Serial Number
  In step 3, if “ * ” appears in fr ont of the 10-digit lens serial 
number, you cannot register several copies of the same lens 
model. Even if you enter the serial number, “ * ” will remain 
displayed.
  The lens serial number on the lens  may differ from the serial 
number displayed on the screen in  step 3. This is not a defect.
  If the lens serial number includes  letters, enter only the numbers in 
step 3.
  The location of the serial number differs depending on the lens.
  Some lenses may not have a serial number inscribed. To register a 
lens that has no serial number in scribed, enter any serial number in 
step 3.
  If [Adjust by lens ] is selected and an Extender is used, the adjustment 
will be registered for the le ns and Extender combination.
  If 40 lenses have already been re gistered, a message will appear. After 
you select a lens whose registration  is to be erased (overwritten), you 
can register another lens.
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							108
3 Fine Adjustment of AF’s Point of Focus N
4Make the adjustment.
 For a zoom lens, turn the  dial and 
select the wide-angle (W) or telephoto (T) 
end. Pressing <
0> will turn off the purple 
frame and make the  adjustment possible.
 Turn the < 5> dial to adjust as 
desired, then press . The 
adjustable range is ±20 steps.
  Setting it toward “–: ” will shift the 
point of focus in front of the standard 
point of focus.
  Setting it toward “+: ” will shift the 
point of focus to the rear of the 
standard point of focus.
  For a zoom lens, repeat step 4 and 
adjust it for the wide-angle (W) and 
telephoto (T) ends.
  After completing the adjustment, 
press the < M> button to return to 
the screen in step 1.
 
Turn the  dial to select [Adjust by lens], 
then press <
0>. The menu will reappear.
5Check the result of the adjustment.
 Take a picture and play back the image 
(p.244) to check the adjustment result.
 When the resulting picture  is focused in front of 
the targeted point, adjust toward the “+: ” side. 
When the resulting pictur e is focused behind the 
targeted point, adjust  toward the “– : ” side.
 If necessary, do the adjustment again.
Single focal length lens
Zoom lens
When shooting with the intermediate range (focal length) of a zoom lens, the AF’s point of focus is corrected 
relative to the adjustments made for the wide-angle and telephoto ends. Even if only the wide-angle or 
telephoto end has been adjusted, a correction will be made automatically for the intermediate range.
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							109
3 Fine Adjustment of AF’s Point of Focus N
When [  Clear all] appears at the bottom of the screen, pressing the 
< L > button will clear all the adjustments made for [ All by same 
amount ] and [Adjust by lens ].
Notes for AF Microadjustment
Clearing All AF Microadjustments
 The AF’s point of focus will vary  slightly depending on the subject 
conditions, brightness, zoom positi on, and other shooting conditions. 
Therefore, even if you perform AF Microadjustment, focus may still not 
be achieved at th e suitable position.
  The adjustments will be retained even if  you clear all the camera settings 
(p.56). However, the se tting itself will be [Disable].
 It is best to make the adjustment at  the actual location where you will 
shoot. This will make th e adjustment more precise.
  Using a tripod when making the adjustment is recommended.
  For checking the adjustment  result, shooting at the 73 image-recording 
quality is recommended.
  The adjustment amount of one step  varies depending on the maximum 
aperture of the lens. Ke ep adjusting, shooting, and checking the focus 
repeatedly to adjust th e AF’s point of focus.
  AF adjustment is not possib le for the Live mode and u Live mode 
(contrast AF).
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							110
Autofocus can fail to achieve focus (viewfinder’s focus confirmation light 
< o > blinks) with certain subjects such as the following:
Subjects difficult to focus
  Very low-contrast subjects
(Example: Blue sky, solid-color walls, etc.)
  Subjects in very low light
  Extremely backlit or reflective subjects
(Example: Car with a highly 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 either of the following:
(1) With One-Shot AF, focus on an obj ect at the same distance as the 
subject and lock the focus before recomposing (p.67).
(2) Set the lens focus mode switch to < MF> and focus manually (p.111).
When Autofocus Fails
For conditions where AF can fail to achieve focus with [Live mode]/[u Live 
mode ] during Live View shooting, see page 211.
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