Canon 50d Owners Manual

171
10
Customizing theCamera
With Custom Functions, you can change the camera 
functions according to your preference. Also, the 
current camera settings can be saved under the Mode 
Dial’s  and < x> positions.
The functions explained in this chapter apply to 
Creative Zone modes.
Creative Zone
COPY  

172
1Select [8].
  Turn the < 6> dial to select the [ 8] 
tab.
2Select the group.
  Turn the < 5> dial to select C.Fn I - 
IV, then press .
3Select the Custom Function 
number.
 Turn the < 5> dial to select the 
Custom Function No., then press 
< 0 >.
4 Change the setting as desired.
  Turn the < 5> dial to select the 
setting (number), then press < 0>.
  Repeat steps 2 to 4 if you want to set 
other Custom Functions.
  At the bottom of the screen, the 
current Custom Function settings are 
indicated...

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3 Custom Functions N
C.Fn I: Exposure
1Exposure level increments
p.1742ISO speed setting increments
3 ISO expansion
4Bracketing auto cancel
5Bracketing sequencep.175
6 Safety shift7Flash sync. speed in Av mode
C.Fn II: Image
1Long exposure noise reductionp.1762High ISO speed noise reduction
3 Highlight tone priority p.177
4Auto Lighting Optimizer
C.Fn III: Autofocus/Drive
1Lens drive when AF impossiblep.1782Lens AF stop button function3 AF point selection method
p.179
4Superimposed display
5AF-assist...

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3 Custom Function SettingsN
C.Fn I: Exposure
C.Fn I -1     Exposure level increments
0: 1/3-stop
1: 1/2-stop
Sets 1/2-stop increments for the shutter speed, aperture, exposure 
compensation, AEB, etc. Effective when you prefer to control the 
exposure in less fine increments than 1/3-stop increments.
C.Fn I -2     ISO speed setting increments
0: 1/3-stop
1: 1-stop
C.Fn I -3     ISO expansion
0: Off
1: On
“H1 ” (equivalent to ISO 6400) and “H2 ” (equivalent to ISO 12800) will be 
selectable for the...

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3 Custom Function Settings N
C.Fn I -5     Bracketing sequence
The AEB shooting sequence and white balance bracketing sequence can 
be changed.
0: 0, -, +
1: -, 0, +
C.Fn I -6     Safety shift
0: Disable
1: Enable (Tv/Av)
This works in the shutter-priority AE (Tv) and aperture-priority AE (Av) 
modes. When the subject’s brightness changes erratically and the 
correct autoexposure cannot be obtained, the camera will change the 
exposure setting automatically to obtain a correct exposure.
C.Fn I -7...

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3 Custom Function Settings N
C.Fn II: Image
C.Fn II -1     Long exposure noise reduction
0: Off
1: Auto
For 1 sec. or longer exposures, noise reduction is performed 
automatically if noise typical of long exposures is detected. This [ Auto] 
setting is effective in most cases.
2: On
Noise reduction is performed for all exposures of 1 sec. or longer. The 
[On ] setting may be effective for noise that cannot be detected or 
reduced with the [ Auto] setting.
C.Fn II -2     High ISO speed noise...

177
3 Custom Function Settings N
C.Fn II -3     Highlight tone priority
0: Disable
1: Enable
Improves the highlight detail. The dynamic range is expanded from the 
standard 18% gray to bright highlights. The gradation between the grays 
and highlights becomes smoother.
C.Fn II -4     Auto Lighting Optimizer
If the images comes out dark or the contrast is 
low, the brightness and contrast are corrected 
automatically. Change the setting as desired. In 
the Basic Zone modes, [ Standard] is set...

178
3 Custom Function Settings N
C.Fn III: Autofocus/Drive
C.Fn III -1     Lens drive when AF impossible
If autofocus is executed, but focus cannot be achieved, the camera can 
either keep trying to focus or stop.
0: Focus search on
1: Focus search off
Prevents the camera from becoming grossly out of focus as it attempts 
to focus again. Especially convenient with super telephoto lenses which 
can become extremely out of focus.
C.Fn III -2     Lens AF stop button function* The AF stop button is provided...

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3 Custom Function Settings N
C.Fn III -3    AF point selection method
0: Normal
Press the < S> button and use < 9> to select the AF point.
1: Multi-controller direct Without pressing the < S> button first, you can just use < 9> to select 
the desired AF point. Pressing the < S> button will set it to automatic 
AF point selection.
2: Quick Control Dial direct Without pressing the < S> button first, you can just use the < 5> to 
select the desired AF point. By holding down the < S> button and 
turning...

180
3 Custom Function Settings N
C.Fn III -6     Mirror lockup
0: Disable
1: Enable
Prevents camera vibrations caused by the reflex mirror action which can 
disturb shooting with super telephoto lenses or close-up (macro) 
shooting. See page 106 for the mirror lockup procedure.
C.Fn III -7     AF Microadjustment
Normally, this adjustment is not required. Do this adjustment 
only if necessary. Note that doing this adjustment may prevent 
correct focusing from being achieved. AF adjustment cannot be 
done...