Canon Eos Rebel T4i 650d Instruction Manual

121
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...

122
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...

123
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...

124
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...

125
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...

126
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...

127
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 ]...

128
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...

129
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...

130
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 
<...