Canon EOS 5D Mk.4 Manual

							
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3 Correction of Lens Aberrations due to Optical Characteristics N
1Select [Distortion correction].
2Select [Enable].
 Check that [ Correction data 
available ] is displayed for the 
attached lens.
  Select [ Enable], then press < 0>.
3Take the picture.
  The image will be recorded with the 
distortion corrected.
Distortion Correction
  When distortion correction is enabled, the camera records an image 
range narrower than the one seen through the viewfinder. (The image 
periphery is slightly trimmed and the resolution looks slightly lowered.)
  During movie shooting, [ Distortion correction] will not be displayed 
(correction is not possible).
  Using distortion correction during Li ve View shooting will slightly affect 
the angle of view.
  When you magnify the image during Live View shooting, distortion 
correction is not applied to the image displayed. Therefore, magnifying 
the periphery of the image may display parts of the image that will not be 
recorded.
  Images with distortion correction app lied will not have the Dust Delete 
Data (p.460) appended. Also, the AF point(s) will not be displayed 
(p.402) for image playback. 
						

							
3 Correction of Lens Aberrations due to Optical Characteristics N
210
1Select [Digital Lens Optimizer].
2Select [Enable].
 Check that [ Correction data 
available ] is displayed for the 
attached lens.
  Select [ Enable], then press < 0>.
3Take the picture.
  The image will be recorded with the 
following being corrected: lens 
aberrations, diffraction phenomenon, 
and the deterioration of resolution 
caused by the low-pass filter.
Digital Lens Optimizer
  Depending on shooting conditions, noise may be intensified with the 
effects of correction. Also, stronger application of outline emphasis may 
result. In such a case, adjust the Pi cture Style’s Sharpness as necessary.
  The higher the ISO speed, the lower the correction amount will be.
 
If the image-recording quality is set to 41 or 61 and you set [Digital 
Lens Optimizer] to [Enable], the image-recording quality will be 1. If [Digital Lens Optimizer] is set to [Enable], the continuous shooting speed 
will greatly decrease. Also, 41 and 61 cannot be set for the image-
recording quality. If a correction is made during Live View shooting, [BUSY] 
will be displayed and the Live View image will not be displayed until the 
correction process is completed. (Another Live View shooting is not possible.)
  If [Digital Lens Optimizer ] is set to [Enable], and you set [ Dual Pixel 
RAW ] to [Enable ], [Digital Lens Optimizer ] will not function. (The 
setting will be switched to [ Disable].)
  During movie shooting, [ Digital Lens Optimizer] will not be displayed 
(correction is not possible).
  If [Digital Lens Optimizer ] is set to [Enable], Multi Shot Noise 
Reduction cannot be set. Also, even if you assign a button to switch the 
image-recording quality to  41 or 61  with [One-touch image 
quality setting ] or [One-touch image quality (hold) ] in Custom 
Controls, that Custom Control  function will not take effect. 
						

							
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3 Correction of Lens Aberrations due to Optical Characteristics N
1Select [Chromatic aberr corr].
2Select [Enable].
 Check that [ Correction data 
available ] is displayed for the 
attached lens.
  Select [ Enable], then press < 0>.
3Take the picture.
  The image will be recorded with the 
chromatic aberration corrected.
Chromatic Aberration Correction
 When [Digital Lens Optimizer] is set to [Enable], [Chromatic aberr 
corr] and [Diffraction correction] will not be displayed, but both will be 
set to [Enable] for shooting. The  icon can be displayed in the  viewfinder (p.84) by adding a 
checkmark [X] to [Digital Lens Optimizer] in [Viewfinder display].  The Digital Lens Optimizer’s correctio n data for newly released lenses 
can be added with EOS Utility (EOS software, p.598).
  If [Invalid correction data for Digital Lens Optimizer. ] is displayed, 
use EOS Utility (EOS software) to add the correction data for the Digital 
Lens Optimizer to the camera.
If [ Digital Lens Optimizer ] is set to [Enable], [Chromatic aberr corr ] will 
not be displayed. 
						

							
3 Correction of Lens Aberrations due to Optical Characteristics N
212
1Select [Diffraction correction].
2Select [Enable].
 Select [ Enable], then press < 0>.
3Take the picture.
  The image will be recorded with the 
diffraction corrected.
Diffraction Correction
  Depending on shooting conditions, noise may be intensified with the 
effects of correction.
  The higher the ISO speed, the lower the correction amount will be.
  For movie shooting, [ Diffraction correction ] will not appear (correction 
is not possible).
 With “Diffraction correction”, degraded resolution due to the low-pass filter, 
etc. is corrected in addition to diffraction. Therefore, correction is effective 
even near the maximum aperture.
  If [Digital Lens Optimizer ] is set to [Enable], [Diffraction correction ] 
will not be displayed. 
						

							
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3 Correction of Lens Aberrations due to Optical Characteristics N
The lens correction data for lens aberration corrections is registered 
(stored) in the camera. With [ Enable] selected, the peripheral 
illumination correction, distortion  correction, Digital Lens Optimizer, 
chromatic aberration correction, and  diffraction correction will be 
applied automatically.
With EOS Utility (EOS software,  p.598), you can check which lenses 
have their correction data registered in the camera. You can also 
register the correction data for unregistered lenses. For details, refer to 
the EOS Utility Instruction Manual (p.600).
For lenses incorporating the correction data, it is not necessary to 
register the correction data to the camera.
Lens Correction Data 
						

							
3 Correction of Lens Aberrations due to Optical Characteristics N
214
Cautions for Lens Correction
 Peripheral illumination correction, distortion correction, chromatic 
aberration correction, and diffraction correction cannot be applied to 
JPEG images already taken.
  When using a non-Canon lens, setting the corrections to [ Disable] is 
recommended even if [ Correction data available ] is displayed.
  If you use magnified view during Live View shooting, the peripheral 
illumination correction and distortion  correction will not be reflected in the 
image on the screen. Note that the Digital Lens Optimizer and diffraction 
correction will not be applied to the Live View image.
  The correction amount will be less (except  for diffraction correction) if the 
lens used does not have distance information.
Notes for Lens Correction
  The effect of the lens aberration corr ection varies depending on the lens 
used and shooting conditions. Also, the effect may be difficult to discern 
depending on the lens used, shooting conditions, etc.
  If the correction is difficult to disc ern, magnifying and checking the image 
after shooting is recommended.
  Corrections can be applied even when  an extender or life-size converter 
is attached.
  If the correction data for the attached lens is not registered to the 
camera, the result will be the same as  when the correction is set to 
[ Disable ] (except for diffraction correction). 
						

							
215
If you shoot an image with a fast shutter speed under a light source 
such as fluorescent light, the blinking of the light source causes flicker 
and the image may be vertically  unevenly exposed. If continuous 
shooting is used under these condi tions, uneven exposures or colors 
across the images may result. W hen you use this feature during 
viewfinder shooting, the camera detects the flickering frequency of the 
light source and takes the picture when the flicker causes less effect on 
exposure or color tone.
1Select [Anti-flicker shoot.].
  Under the [ z4] tab, select [ Anti-
flicker shoot. ], then press < 0>.
2Select [Enable].
3Take the picture.
  The image will be taken with reduced 
unevenness of exposure or color tone 
caused by the flicker.
3  Reducing Flicker N
 When [Enable] is set and you shoot under a flickering light source, the 
shutter-release time lag may become longer. Also, the continuous shooting 
speed may become slower, and the shooting interval may become irregular.
  This function does not work with mirro r lockup, Live View shooting, or 
movie shooting.
 
In the  or  mode, if the shutter speed changes during continuous 
shooting or if you shoot multiple shots of the same scene at different shutter 
speeds, the color tone may be inconsistent. To avoid inconsistent color 
tones, use the <
s> or  mode at a fixed shutter speed.  The color tone of the captured images when [ Anti-flicker shoot.] is set 
to [ Enable ] may look different from when [ Disable] is set.
  Flicker at a frequency other than 100 Hz or 120 Hz cannot be detected. 
Also, if the flickering frequency of the light source changes during 
continuous shooting, effects of the flicker cannot be reduced. 
						

							
3 Reducing Flicker N
216
 If the subject is against a dark background or if there is a bright light in 
the image, flicker may not be properly detected.
  Under certain special types of lighting, the camera may not be able to 
reduce the effects of the flicker even when < G> is displayed.
  Depending on the light source, flicker may not be detected properly.
  If you recompose a shot, < G> may appear and disappear 
intermittently.
  Depending on the light sources or shooting conditions, the expected 
result may not be obtained even if you use this function.
 Taking test shots in advance is recommended.
  If  is not displayed in the viewfinder, add a checkmark to 
[ Flicker detection ] in [Show/hide in viewfinder ] (p.84). If you shoot 
with flicker reduction, < G> will light up. Under a light source which 
does not flicker, or if no flicker is detected, < G> will not be 
displayed.
  If a checkmark is added to [ Flicker detection] and [z4: Anti-flicker 
shoot. ] is set to [ Disable], metering under a flickering light source will 
cause < G > to blink in the viewfinder as a warning. Setting to 
[ Enable ] before shooting is recommended.
  In the < A> mode, < G> will not be displayed, but the picture will 
be taken with flicker reduction.
  Flicker reduction also works with flash. However, the expected result 
may not be obtained for wireless flash shooting. 
						

							
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The range of reproducible colors is called “color space”. With this 
camera, you can set the color space for captured images to sRGB or 
Adobe RGB. For normal shooting, sRGB is recommended.
In the < A> mode, the color space is set automatically to [ sRGB].
1Select [Color space].
 Under the [ z2] tab, select [ Color 
space ], then press < 0>.
2Set the desired color space.
  Select [ sRGB] or [Adobe RGB ], then 
press < 0>.
This color space is mainly used for commercial printing and other 
industrial uses. This setting is not  recommended if you are not familiar 
with image processing, Adobe RGB, and Design rule for Camera File 
System 2.0 (Exif 2.21 or higher). T he image will look very subdued in a 
sRGB computer environment and with  printers not compliant to Design 
rule for Camera File System 2.0 (Exif 2.21 or higher). Post-processing 
of the image with computer software will therefore be required.
3  Setting the Color Space N
Adobe RGB
 If the captured still photo was shot in the Adobe RGB color space, the 
first character in the file name will be an underscore “_”.
 
The ICC profile is not appended. For explanations about the ICC profile, 
refer to the Digital Photo Professional Instruction Manual (p.600). 
						

							
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You can freely create and select the folder where the captured images 
are to be saved.
This operation is optional since a folder will be created automatically for 
saving captured images.
1Select [Record func+card/folder 
sel.].
 Under the [ 51] tab, select [ Record 
func+card/folder sel. ], then press 
< 0 >.
2Select [Folder].
3Select [Create folder].
4Select [OK].
XA new folder with the folder number 
increased by one is created.
3  Creating and Selecting a Folder
Creating a Folder