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Canon EOS 450D Instruction Manual

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9
Customizing the
Camera
You can customize various camera features to suit your 
picture-taking preferences. You can do it with Custom 
Functions. Custom Functions can be set and used only 
in Creative Zone modes. 

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1Select [Custom Functions (C.Fn)]. 
 Under the [7] tab, select [Custom 
Functions (C.Fn)], then press .
2Select the Custom Function No.
 Press the  key to select the 
number of the Custom Function to be 
set, then press .
3Change the setting as desired.
 Press the  key to select the 
desired setting (number), then press 
.
 Repeat steps 2 and 3 if you want to 
set other Custom Functions.
 At the bottom of the screen, the 
current Custom Function settings are 
indicated below the respective 
numbers....

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3 Setting Custom FunctionsN
Custom Functions
C.Fn I: Exposure
1Exposure level incrementsp.1542Flash sync. speed in Av mode
C.Fn II: Image
3Long exposure noise reductionp.155
4 High ISO speed noise reduction
5Highlight tone priorityp.1566Auto Lighting Optimizer
C.Fn III: Auto focus/Drive
7
AF-assist beam firing
p.157 8 AF during Live View shooting
9Mirror lockup
C.Fn IV: Operation/Others
10Shutter/AE lock buttonp.15811SET button when shooting
12 LCD display when power ON
p.159
13Add original decision...

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Custom Functions are organized into four groups based on the function 
type: C.Fn I: Exposure, C.Fn II: Image, C.Fn III: Auto focus/Drive, C.Fn 
IV: Operation/Others.
3 Custom Function SettingsN
C.Fn I: Exposure
C.Fn-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-2Flash sync. speed in Av...

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3 Custom Function SettingsN
C.Fn II: Image
C.Fn-3 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 1 sec. or longer. The [On] 
setting may be effective for noise that cannot be detected or reduced 
with the [Auto] setting.
C.Fn-4 High ISO speed noise reduction
0: Off
1: On
Reduces...

Page 156

3 Custom Function SettingsN
156
C.Fn-5 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-6 Auto Lighting Optimizer
0: Enable
If the image comes out too dark or the contrast is too low, the image 
brightness and contrast are corrected automatically. (Depending on the 
shooting conditions, image noise may increase.) This function...

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3 Custom Function SettingsN
C.Fn III: Auto focus/Drive
C.Fn-7 AF-assist beam firing
The AF-assist beam can be emitted by the camera’s built-in flash or by the 
external, EOS-dedicated Speedlite.
0: Enable
1: Disable
AF-assist beam not emitted.
2: Only external flash emits
If an external, EOS-dedicated Speedlite is attached, it will emit the AF-
assist beam when necessary. The camera’s built-in flash will not emit 
the AF-assist beam.
C.Fn-8 AF during Live View shooting
When 1 or 2 is set, AF will be...

Page 158

3 Custom Function SettingsN
158
C.Fn IV: Operation/Others
C.Fn-10 Shutter/AE lock button
0: AF/AE lock
1: AE lock/AF
Convenient when you want to focus and meter separately. Press the 
 button to autofocus and press the shutter button halfway to attain 
AE lock.
2: AF/AF lock, no AE lock
In the AI Servo AF mode, you can press the  button to stop the AF 
operation momentarily. This prevents the AF from being thrown off by 
any obstacle passing between the camera and subject. The exposure is 
set at the...

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3 Custom Function SettingsN
C.Fn-12 LCD display when power ON
0: Display
When the power switch is turned on, the shooting settings will be 
displayed.
1: Retain power OFF status
If you pressed the  button to turn off the LCD monitor and then 
you turn off the power, the LCD monitor will not turn on when you turn on 
the power again. This helps to save battery power. The menu screens 
and image playback will still be displayed when used.
If you pressed the  button and then turn off the power while the...

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For faster access, you can register up to six menus and Custom Functions whose settings you change frequently.
1Select [My Menu settings].
 Under the [9] tab, select [My Menu 
settings], then press .
2Select [Register].
 Select [Register], then press .
3Register the desired menus.
 Select a menu, then press .
 When the confirmation dialog 
appears and you select [OK] and 
press , the menu will be 
registered.
 Repeat this procedure to register up 
to six menus.
 To return to the screen in step 2,...
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