Canon Eos Rebel T4i 650d Instruction Manual

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You can lock the exposure when the area of focus is to be different from the 
exposure metering area or when you want  to take multiple shots at the same 
exposure setting. Press the <
A> button to lock the exposure, then recompose and take the shot. This is called AE lock.  It is effective for backlit subjects.
1Focus the subject.
 Press the shutter button halfway.
X The exposure setting will be 
displayed.
2Press the < A> button. (0 )
X The < A> icon lights up in the 
viewfinder to indicate that the 
exposure setting is locked (AE lock).
  Each time you press the  button, 
the current autoexposure setting is 
locked.
3Recompose and take the picture.
  If you want to maintain the AE lock 
while taking more shots, hold down 
the < A> button and press the shutter 
button to take another shot.
* When the lens’ focus mode  switch is set to , AE lock is  applied at the 
center AF point.
A  Locking the Exposure N
AE Lock Effects
Metering Mode 
(p.115)AF Point Selection Method  (p.97)Automatic SelectionManual Selection
q*AE lock is applied at the AF 
point that achieved focus.AE lock is applied at the 
selected AF point.
wreAE lock is applied at the center AF point.
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If the subject is on the side of the frame and you use flash, the subjec\
t may 
turn out to be too bright or dark depending on the background, etc. This is 
when you should use FE lock. After se tting the proper flash exposure for 
the subject, you can recompose (put  the subject toward the side) and 
shoot. This feature can also be used  with a Canon EX-series Speedlite.
* FE stands for Flash Exposure.
1Press the  button.
X The built-in flash will rise.
  Press the shutter button halfway and 
look in the viewfinder to check that 
the < D> icon is lit.
2Focus the subject.
3Press the < A> button. (8 )
  Aim the spot metering circle over the 
subject, then press the < A> button.
X The flash will fire a preflash and the 
required flash output is calculated 
and retained in memory.
X In the viewfinder, “ FEL” is displayed 
for a moment and  will light up.
 
Each time you press the  button, a 
preflash is fired and the required flash output 
is calculated and retained in memory.
4Take the picture.
  Compose the shot and press the 
shutter button completely.
X The flash is fired when the picture is 
taken.
A Locking the Flash Exposure N
Spot metering circle
 If the subject is too far  away and beyond the effect ive range of the flash, 
the < D> icon will blink. Get  closer to the subject and repeat steps 2 to 4.
  FE lock cannot be  used during Live View shooting.
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If the image comes out dark or the contrast is low, the brightness and 
contrast can be corrected automatically . This function is called Auto 
Lighting Optimizer. The default setting is [ Standard]. With JPEG 
images, the correction is done wh en the image is captured. For RAW 
images, it can be corrected with Digital Photo Professional (provided 
software, p.350).
In Basic Zone modes, [ Standard] is set automatically.
1Select [Auto Lighting Optimizer].
 Under the [ z2] tab, select [Auto 
Lighting Optimizer ], then press 
< 0 >.
2Select the setting.
  Select the desired setting, then press 
.
3Take the picture.
  The image will be recorded with the 
brightness and contrast corrected if 
necessary.
3 Auto Correction of Brightness and ContrastN
 Under [ 54: Custom Functions (C.Fn) ], if [3: Highlight tone priority ] is 
set to [ 1: Enable ], the Auto Lighting Optimizer  will be set automatically to 
[ Disable ] and the setting cannot be changed.
  If a setting other than [ Disable] is set and you use exposure 
compensation or flash ex posure compensation to darken the exposure, 
the image may still come  out bright. If you want a darker exposure, set 
this function to [ Disable].
  Depending on the sh ooting conditions, noise may increase.
In step 2, if you press the < B> button and uncheck < X> the [Disable 
during man expo ] setting, the Auto Lighting  Optimizer can be set in the 
 mode.
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This function reduces the noise generated in the image. Although noise 
reduction is applied at all  ISO speeds, it is particularly effective at high 
ISO speeds. At low ISO speeds, the noise in the darker parts of the 
image (shadow areas) is further redu ced. Change the setting to suit the 
noise level.
1Select [High ISO speed NR].
  Under the [ z3] tab, select [High ISO 
speed NR ], then press < 0>.
2Set the setting.
  Select the desired setting, then press 
.
X The setting screen closes and the 
menu will reappear.
  [M : Multi Shot Noise Reduction]
Noise reduction with higher  image quality than when [High] is 
applied. For a single photo, four shots are taken in a burst and 
merged automatically into a single JPEG image.
3Take the picture.
  The image will be recorded with noise 
reduction applied.
3  Noise Reduction Settings N
High ISO Speed Noise Reduction
With [High] or [Multi Shot Noise Reduction ], the maximum burst for 
continuous shooting wi ll greatly decrease.
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3 Noise Reduction SettingsN
You can reduce noise in long exposures.
1Select [Long exp. noise 
reduction].
 Under the [ z3] tab, select [Long 
exp. noise reduction ], then press 
< 0 >.
Long Exposure Noise Reduction
About [Multi Shot  Noise Reduction]
  The following function s cannot be set: AEB, WB bracketing, [ z3: Long 
exp. noise reduction ], 1 +73/ 1. If any of these  has already been 
set, [Multi Shot Noise Reduction ] cannot be set.
 
Flash shooting is not possible. The AF-assi st beam will be emitted according to 
the [5 4: Custom Fu nctions (C.Fn)]’s [4: AF-assist beam firing] setting. You cannot set [ Multi Shot Noise Reduction ] for bulb exposures.
  If you turn off the powe r or change the shooting  mode to a Basic Zone 
mode, movie shooting, or bulb , the setting will change to [Standard].
  If the images are greatl y misaligned due to camera shake or if there is a 
moving subject, the noise redu ction effect may be minimal.
  If you are handholding the camera, ke ep it steady to prevent camera 
shake. Using a trip od is recommended.
  The image alignment may not function  properly with repetitive patterns 
(lattice, stripes, etc.) or  flat, single-tone images.
  Recording the image to  the card will take longer than  with normal 
shooting. During the proc essing of the images, “BUSY” will be displayed 
and you cannot take another picture until the processing is completed.
  [z 3: Dust Delete Data ] cannot be set.
 
If [Multi Shot No ise Reduction] is set, direct printing is not possible. Select a 
setting other than [Multi Shot Noise Reduction] and perform direct printing.
If you play back a  1+73 or  1 image with the camera  or print an image 
directly, the effect of the high ISO speed noise reduction may look minimal. 
Check the noise reduction effect or pr int noise-reduced images with Digital 
Photo Professional (pro vided software, p.350).
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3 Noise Reduction Settings N
2Set the setting.
 Select the desired setting, then press 
.
X The setting screen closes and the 
menu will reappear.
  [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.
  [Enable]
Noise reduction is performed for all  exposures of 1 sec. or longer. 
The [Enable ] setting may be able to reduce noise that otherwise 
cannot be detected with the [ Auto] setting.
3Take the picture.
 The image will be recorded with noise 
reduction applied.
 With [ Auto] and [ Enable ], the noise reduction process after the picture is 
taken may take the same amount of  time as the exposure. You cannot 
take another picture until the nois e reduction process is completed.
  Images taken at ISO 16 00 or higher may look grainier with the [ Enable] 
setting than with the [ Disable] or [Auto ] setting.
  With [ Auto] and [ Enable ], if a long exposure is  shot with the Live View 
image displayed, “ BUSY” will be displayed during the noise reduction 
process. The Live  View display will not reappe ar until the noise reduction 
is completed. (You cannot  take another picture.)
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Peripheral light fall-off is a phenomenon that makes the image corners 
look darker due to the lens characteri stics. Color fringing along subject 
outlines is another chromatic aberration. Both lens aberrations can be 
corrected. RAW images can be corrected with Digital Photo 
Professional (provided software, p.350).
1Select [Lens aberration 
correction].
  Under the [ z1] tab, select [Lens 
aberration correction ], then press 
< 0 >.
2Select the setting.
  Check that [ Correction data 
available ] is displayed for the 
attached lens.
  Select [Peripheral illumin. ], then 
press < 0>.
  Select [Enable ], then press .
  If [Correction data not available] is 
displayed, see “About the Lens 
Correction Data” on page 129.
3Take the picture.
  The image will be recorded with the 
peripheral illumination corrected.
3 Lens Peripheral Illumination /  Chromatic Aberration Correction
Peripheral Illumination Correction
Depending on shooting conditions,  noise may appear on the image 
periphery.
  The correction amount applied will be  slightly lower than the maximum 
correction amount settable with Di gital Photo Professional (provided 
software).
  The higher the ISO speed, the lowe r the correction amount will be.
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3 Lens Peripheral Illumination / Chromatic Aberration Correction
1Select the setting.
 Check that [ Correction data 
available ] is displayed for the 
attached lens.
  Select [Chromatic aberration ], then 
press < 0>.
  Select [Enable ], then press .
  If [Correction data not available] is 
displayed, see “About the Lens 
Correction Data” on the next page.
2Take the picture.
  The image will be recorded with the 
chromatic aberration corrected.
Chromatic Aberration Correction
 With [ Enable ], the maximum burst  for continuous shooting will greatly 
decrease.
  If you play back a RAW image shot  with the chromatic aberration 
corrected, the image will be disp layed on the camera without the 
chromatic aberration correction appl ied. Check the chromatic aberration 
correction with Digital Photo Prof essional (provided software, p.350).
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3 Lens Peripheral Illumination / Chromatic Aberration Correction
The camera already contains lens  peripheral illumination correction 
data and chromatic aberration correction data for approx. 25 lenses. If 
you select [ Enable], the peripheral illumination correction and 
chromatic aberration correction will be applied automatically for any 
lens whose correction data is  registered in the camera.
With EOS Utility (provided software), you can check which lenses have 
their correction data registered in the camera. You can also register the 
correction data for unregistered l enses. For details, refer to the 
Software Instruction Manual (CD- ROM) for EOS Utility (p.352).
Notes for Peripheral Illumination Correction and Chromatic Aberration 
Correction
About the Lens Correction Data
  Corrections cannot be ap plied afterwards to JPEG images captured 
when [Disable ] was set.
  When using a non-Canon lens, setting the corrections to [ Disable] is 
recommended, even if [ Correction data available] is displayed.
  If you use the magnified view during  Live View shooting, the peripheral 
illumination correction a nd chromatic aberration co rrection will not be 
reflected in the image shown on the screen.
  If the effect of the correction is no t visible, magnify the image and check 
it.
  The corrections are also applied  when an Extender is attached.
  If the correction data for the attach ed lens is not registered to the 
camera, the result will be  the same as when the correction is set to 
[ Disable ].
  If the lens does not have distance in formation, the correction amount will 
be lower.
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You can customize a Picture Style by adjusting individual parameters 
such as [Sharpness] and [Contrast ]. To see the resulting effects, take 
test shots. To customize [Monochrome], see page 132.
1Press the  button.
2Select a Picture Style.
 Select a Picture Style, then press the 
 button.
X The Detail setting screen will appear.
3Select a parameter.
  Select a parameter such as 
[Sharpness], then press < 0>.
4Set the parameter.
  Press the < U> key to adjust the 
parameter as desired, then press 
< 0 >.
  Press the < M> button to save the 
adjusted parameters. The Picture 
Style selection screen will reappear.
X Any parameter settings different from 
the default will be displayed in blue.
A  Customizing Image Characteristics N
 By selecting [ Default set.] in step 3, you can  revert the respective 
Picture Style to its defa ult parameter settings.
  To shoot with the Picture Style you mo dified, follow step 2 on page 93 to 
select the modified Picture Style and then shoot.
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