Canon Eos Rebel T2i 550d Instruction Manual

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3 Setting Custom Functions N
* The C.Fn I -1 setting will also  be applied to movie shooting.
Custom Functions
C.Fn I: ExposureA LV shooting
1Exposure level increments
p.192
k
2ISO expansionk
3 Flash sync. speed in Av mode k
C.Fn II: Image
4Long exposure noise reductionp.193k
5High ISO speed noise reductionk
6 Highlight tone priority p.194 k
C.Fn III: Autofocus/Drive
7 AF-assist beam firingp.194k
8Mirror lockupp.195
C.Fn IV: Operation/Others
9Shutter/AE lock buttonp.195k
10Assign SET buttonp.19611 LCD display when power ON k
12Add image verification datap.197k
The shaded Custom Functions do not work during Live View (LV) shooting. 
(Settings are disabled.)
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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: Autofocus/Drive, C.Fn 
IV: Operation/Others.
3 Custom Function Settings N
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, flash exposure  compensation, etc. Effective when 
you prefer to control the exposure in  less fine increments than 1/3-stop 
increments.
C.Fn-2 ISO expansion
0: Off
1: On
For the ISO speed, “ H” (equivalent to ISO  12800) will be selectable.
C.Fn-3Flash sync. speed in Av (Aperture-priority AE) mode
0: Auto
The flash sync speed is set automatic ally within a range of 1/200 sec. to 
30 sec. to suit the scene’s brightness.
1: 1/200-1/60 sec. auto When flash is used with  aperture-priority AE (f), this prevents a slow 
flash-sync speed from being set automatic ally in low-light conditions. It 
is effective for preventing subject  blur and camera shake. However, 
while the subject will be properly ex posed with the flash, the background 
will come out dark.
2: 1/200 sec. (fixed) The flash-sync speed is fixed to 1/ 200 sec. This more effectively 
prevents subject blur and camera shake than with setting 1. However, 
the background may come out  darker than with setting 1.
The exposure level will be displaye d in the viewfinder and on the LCD 
monitor as shown below.
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3 Custom Function Settings N
C.Fn II: Image
C.Fn-4 Long exposure noise reduction
0: Off
1: Auto
For 1 sec. or longer exposure s, noise reduction is performed 
automatically if noise typical of lo ng exposures is detected. This [Auto] 
setting is effective in most cases.
2: On Noise reduction is performed for all ex posures of 1 sec. or longer. The 
[ On ] setting may be effective for no ise that cannot be detected or 
reduced with the [Auto ] setting.
C.Fn-5 High ISO speed noise reduction
Reduces the noise generated in the  image. Although noise reduction is 
applied at all ISO speeds, it is particul arly effective at high ISO speeds. At 
low ISO speeds, the noise in the shad ow areas is further reduced. Change 
the setting to suit the noise level.
0: Standard
1: Low
2: Strong
3: Disable
When 1 or 2 is set, high-speed sync cannot be used with an external Speedlite.
  With setting 1 and 2, after the pi cture is taken, the noise reduction 
process may take the same amount of  time as the exposure. You cannot 
take another picture until the nois e reduction process is completed.
  At ISO 1600 and higher, noise might  be more pronounced with setting 2 
than with setting 0 or 1.
 
With setting 2, if a long exposure is  shot during Live View display, “BUSY” will be 
displayed during the noise red uction process. The Live View display will not 
appear until the noise reduct ion is completed. (You cannot take another picture.)
With setting 2, the maximum burst fo r continuous shooting will greatly 
decrease.
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194
C.Fn-6 Highlight tone priority
0: Disable
1: Enable
Improves the highlight detail. The  dynamic range is expanded from the 
standard 18% gray to bright highli ghts. The gradation between the grays 
and highlights becomes smoother.
C.Fn III: Autofocus/Drive
C.Fn-7 AF-assist beam firing
The AF-assist beam can be emitted by t he camera’s built-in flash or by an 
external, EOS-dedicated Speedlite.
0: Enable
1: Disable
The AF-assist beam is not emitted.
2: Enable external flash only 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 fire the 
AF-assist beam.
3: IR AF assist beam only Among EOS-dedicated Speedlites, only  those which have an infrared 
AF-assist beam will be able to em it the beam. This prevents any 
Speedlite which uses a series of sm all flashes (like the built-in flash) 
from firing the AF-assist beam.
  With setting 1, the [ Disable] setting automatically  takes effect for the 
Auto Lighting Optimizer (p.103 ) and it cannot be changed.
  With setting 1, noise ma y become slightly more pronounced than usual.
With setting 1, the settable ISO  speed range will be 200 - 6400.
Also, the  icon will be displayed on  the LCD monitor and in the 
viewfinder when highlight to ne priority is enabled.
If the external, EOS-dedicated Speedlite’s [ AF-assist beam firing] Custom 
Function is set to [Disabled ], the Speedlite will not emit the AF-assist beam 
even if the camera’s  C.Fn-7-0/2/3 is set.
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3 Custom Function Settings N
C.Fn-8 Mirror lockup
0: Disable
1: Enable
Prevents camera vibrations caused by the reflex mirror action which can 
disturb shooting with s uper telephoto lenses or close-up (macro) 
shooting. See page 106 for the mirror lockup procedure.
C.Fn IV: Operation/Others
C.Fn-9 Shutter/AE lock button
0: AF/AE lock
1: AE lock/AF
Convenient when you want to focu s and meter separately. Press the 
 button to autofocus, and press the  shutter button halfway to apply 
AE lock.
2: AF/AF lock, no AE lock In the AI Servo AF mode, you can press the < A> button to stop the AF 
operation momentarily. This prevents  the AF from being thrown off by 
any obstacle passing between the came ra and subject. The exposure is 
set at the moment the picture is taken.
3: AE/AF, no AE lock This is useful for subjects which keep moving and stopping repeatedly. 
In the AI Servo AF mode, you can press the  button to start or stop 
the AI Servo AF operation. The ex posure is set at the moment the 
picture is taken. Thus, the opti mum focusing and exposure will always 
be achieved as you wait for the decisive moment.
When 1 or 3 is set, pressing the Re mote Switch (p.205) halfway will not 
work.
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196
C.Fn-10 Assign SET button
You can assign a frequently-used function to < 0>. Press < 0> when the 
camera is shooting-ready.
0: Normal (disabled)
1: Image quality
Press < 0> to display the image-recordi ng quality setting screen on the 
LCD monitor.
Press the < S> key to select the image-r ecording quality, then press 
.
2: Flash exposure compensation When you press < 0>, the flash exposure compensation setting screen 
will appear.
3: LCD monitor On/Off
Assigns the same function as the < B> button.
4: Menu display Assigns the same function as the < M> button.
5: ISO speed
Assigns the same function as the < Z> button.
C.Fn-11 LCD display when power ON
0: Display on
When the power switch is turned  on, the shooting settings will be 
displayed (p.44).
1: Previous display status
If you pressed the < B> button and turned off th e camera while the 
LCD monitor was off, t he shooting settings will not be displayed when 
you turn on the camera again. This  helps to save battery power. The 
menu screens and image pl ayback will still be displayed when used.
If you pressed the < B> button and turned off th e camera while the 
LCD monitor was on, the  shooting settings will be displayed when you 
turn on the camera again.
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3 Custom Function Settings N
C.Fn-12 Add image verification data
0: Disable
1: Enable
Data for verifying whether  the image is original or not is appended to the 
image automatically. When the s hooting information of an image 
appended with the verification data  is displayed (p.173), the  icon 
will appear.
To verify whether the image is origin al, the Original Data Security Kit 
OSK-E3 (sold separately) is required.
The images are not compatible with  the image encryption/decryption 
features of Original Da ta Security Kit OSK-E3.
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Under the My Menu tab, you can register up to six menu options and 
Custom Functions whose settings you change frequently.
1Select [My Menu settings].
 Under the [ 9] tab, select [ My Menu 
settings ], then press < 0>.
2Select [Register to My Menu].
  Select [Register to My Menu ], then 
press < 0>.
3Register the desired items.
  Select the item to be registered, then 
press < 0>.
  On the confirmation dialog, select 
[OK ] and press  to register the 
item.
  You can register up to six items in My 
Menu.
  To return to the screen in step 2, 
press the < M> button.
  Sort
You can change the order of the registered items in My Menu. Select 
[Sort] and select the item whose or der you want to change. Then 
press < 0>. With [z ] displayed, press the < V> key to change 
the order, then press < 0>.
  Delete item/items and Delete all items
You can delete any of the registered items. [ Delete item/items] 
deletes one item at a time, and [ Delete all items] deletes all items.
  Display from My Menu
When [Enable ] is set, the [9 ] tab will be displayed first when you 
display the menu screen.
3  Registering My Menu N
About My Menu settings
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When you set the copyright information, it will be appended to the 
image as Exif information.
1Select [Copyright information].
 Under the [ 7] tab, select [Copyright 
information ], then press < 0>.
2Select the desired option.
  Press the < V> key to select either 
[Enter author ’s name ] or [Enter 
copyright details ], then press .
X The text entry screen will appear.
  Select [Display copyright info. ] to 
check the copyright information 
currently set.
  Select [Delete copyright 
information ] to delete the copyright 
information currently set.
3Enter text.
  Refer to “Text Entry Procedure” on 
the next page and enter the copyright 
information.
  Enter up to 63 alphanumeric 
characters and symbols.
4Exit the setting.
 After entering the text, press the 
 button to exit.
3 Setting Copyright Information N
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							3 Setting Copyright Information N
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 Changing the entry area
Press the < Q> button to toggle 
between the top and bottom entry 
areas.
  Moving the cursor
Press the  key to move the 
cursor.
  Entering text
In the bottom area, press the < S> key to select a character, then 
press < 0> to enter it.
  Deleting a character
Press the < L> button to delete a character.
  Exiting
After completing the text entry, press the < M> button to return 
to the screen in step 2.
  Canceling the text entry
To cancel the text entry, press the < B> button to return to the 
screen in step 2.
Text Entry Procedure
You can also enter the co pyright information with EOS Utility (provided 
software).
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