Canon EOS 5D Mark III User manual

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Customizing AF Functions*

AF5

During manual AF point selection, the selection can either stop at the

outer edge or it can move to the opposite 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.)

_o_: Stops at AF area edges

Convenient if you often use an AF point

along the edge.

_oot: Continuous

Instead of stopping at the outer edge, the

selected AF point continues to the

opposite side.

You can set whether or not to display 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.

I_!tl_www:All (constant)

All 61 AF points are always displayed.

_,_6: Selected (pre-AF, focused)

The selected AF point(s) is displayed for 1,2, and 4.

,_6 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.

102

Customizing AF Functions*

If [$eJected (pre_AF, focused)] 0[ [selected (focused)] is setl the AF point

will net be displayed even when focus is achieved with AI Serve AF.

The AF points and grid in the viewfinder 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.

The Settinghereis n0t applied t0the electronic ieve dsplay (p159)in the

Viewfinder.

When Y0upress the <r:iq> buttonl the AF pointsandgrid Willbe illuminated

!nred rega[dless 0fthis setting.

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.

103

Fine Adjustment of AF's Point of Focus_ _

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.

O Normally, this adjustment is not required. Do this adjustment

only if necessary. Note that doing this adjustment may prevent

correct focusing from being achieved.

Adjust All bySameAmOunt

Set the adjustment manually by adjusting, shooting, and checking the

result. Repeat this until the desired adjustment is made. During AF,

regardless of the lens used, the point of focus will always be shifted by

the adjustment amount.

_Select [AF Microadjustment].

_ Under the [AFS] tab, select [AF

Microadjustment], then press <8>.

Select [All by same amount].

_ Turn the <0> dial to select [All by

same amount].

,_,/_Press the <INFO.>button.

_y,,The JAil by same amount] screen

wiii appear.

1O4

Fine Adjustment of AF's Point of Focus *

_Make the adjustment.

® Turn the <0> dial to make the

adjustment. The adjustable range is

_+20steps.

® 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 <0> dial to select [All by

same amount], then press <8>.

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 isfocused behind the

targeted point, adjust toward the "-

:'_" side.

_ If necessary, do the adjustment

again.

0 if [Ail bY same amount] iS seiectedi AE adjustment will nOt be pOssible for

the wide:ang!e and telephoto ends of zoom lenses,

105

Fine Adjustment of AF's Point of Focus'*

Adjust by Lens

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 whose adjustment has been registered,

the point of focus will always be shifted by the adjustment amount.

Set the adjustment manually by adjusting, shooting, and checking the

result. Repeat this until the desired adjustment is made. If you use a

zoom lens, make the adjustment for the wide-angle (W) and telephoto

(T) ends.

¢_ Select [Adjust by lens].

_ Turn the <0> dial to select [Adjust

by lens].

*} Press the <INFO.>button.

_y,,The [Adjust by lens] screen will

appear.

106

3Check and change the lens

information.

Check the lens information.

® Press the <INFO.> button.

_y,,Thescreenwillshowthelensnameanda 10-

digitserialnumber.Whentheserialnumberis

displayed,select[OK] andgoto step4.

®_Ifthe lens'serial numbercannotbe

confirmed,"0000000000"will bedisplayed.

Enterthenumberas indicatedbelow. See

thenext page about theasterisk.....

displayedinfront ofthe lensserialnumber.

Fine Adjustment of AF's Point of Focus "_

Enter the serial number.

® Turn the <C_> dial to select the digit,

then press <8> to display <,_>.

® Turn the <0> dial to enter the

number, then press <8>.

® After entering all the digits, turn the

<0> dial to select [OK], then press

<8 >.

About the Lens Serial Number

®in step 3, if ..... appears in front 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 inscribed, enter any serial number in

step 3.

® if [Adjust by lens] is Selecied and an Extender is USed, the adjustment

wi!l be registered for the !ens and Extender combination ,

®_ !f 4-0 lenses have already been registered, a message will appear. After

YOu selec t a !ens whose registratio n!s to be erase d (overwritten), YOU

can register another !ens_

107

Fine Adjustment of AF's Point of Focus *

Single focal length lens

Zoom lens

_,_ Make the adjustment.

® For azoom lens, turn the <0> dial and

select the wide-angle (W) or telephoto (T)

end.Pressing <__> will turn offthe purple

frame and make the adjustment possible.

® Turn the <0> dial to adjust as

desired, then press <8>. The

adjustable range is _+20steps.

® Setting it toward "-:t"" 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 <MENU>button to return to

the screen in step 1.

® Turnthe<0 >dialtoselect[Adjust by lens],

thenpress<8>. Themenuwiltreappear.

5Check the result of the adjustment.

® Take a picture and play back the image

(p.244) to check the adjustment result.

® Whentheresultingpictureisfocusedinfrontof

thetargetedpoint,adjusttowardthe"+:_" side.

Whentheresultingpictureisfocusedbehindthe

targetedpoint,adjusttowardthe"-:_," side=

® If necessary, do the adjustment again.

[] WhenShootingWiththeintermediaterange(foca!length)ofaz0Qrn!ens,theAFspointdfocusiscorrected

re_ati_etQt_ adjustmentsmadef_rt_ewide:angieandteiep_t_ends.Evenif_n_ythewide:ang_e_r

telephotoandhasbeanadjusted,acorrectbnwi!!bemadeaut0matica!!yforthein!e[mediaterange,

108

Fine Adjustment of AF's Point of Focus*

Clearing All AF IVlicroadjustments

When [[] Clear all] appears at the bottom of the screen, pressing the

<@> button wi[[ clear a[[ the adjustments made for JAil by same

amount] and [Adjust by lens].

Notes for AF Microadjustment

I_ The AF's point of focus will vary slightly depending on the subject

conditions, brightness, zoom position, and other shooting conditions.

Therefore. even if you perform AF Microadjustment. focus may still not

De achieved at the suitable position.

The adjustments will be retained even if you clear all the camera settings

(p.56). However. the setting itself will be [Disable ].

It Jsbest to make the adjustment at the actual location where you will

shoot. This will make the adjustment more precise.

Using a tripod when making the adjustment is recommended.

For checking the adjustment result, shooting at the d k image-recording

quality is recommended.

The adjustment amount of one step varies depending on the maximum

aperture of the lens. Keep adjusting, shooting, and checking the focus

repeatedly to adjust the AF's point of focus.

AF adjustment is not possible for the Live mode and _ Live mode

(contrast AF)

109

When Autofocus Fails

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 object 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).

[] For €onditions Whe[e AF Can fail t0 achieye focus With [Live mode]t[_ Live

model during Live View shooting Isee page 211

110

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