Canon 80d Manual

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3 Setting Noise ReductionN
Cautions for Setting Multi Shot Noise Reduction
 If there is significant misalignment in  the image due to camera shake, the 
noise reduction effect may become smaller.
 If you are handholding the camera, keep it steady to prevent camera 
shake. Using a tripod is recommended.
 If you shoot a moving subject,  the moving subject may leave 
afterimages.
 The image alignment may not function properly with repetitive patterns 
(lattice, stripes, etc.) or flat, single-tone images.
 If the subject’s brightness changes as the four consecutive shots are 
taken, irregular exposure in the image may result.
 After shooting, it may take some time to record an image to the card for 
noise reduction and merging the images . During the processing of the 
images, “ buSY” will be displayed in the viewfinder and on the LCD panel, 
and you cannot take another picture until the processing is completed.
 You cannot use AEB and WB bracketing.
 If [z 3: Long exp. noise reduction ], [z 3: Multiple exposure ], [z3: 
HDR Mode ], AEB, or WB bracketing is set, [ Multi Shot Noise 
Reduction ] cannot be set.
 You cannot set [ Multi Shot Noise Reduction ] for bulb exposures or 
movie shooting.
 Flash shooting is not possible.  The AF-assist beam will be emitted 
according to the [ 8 C.Fn II -6: AF-assist beam firing ] setting.
 If you turn off the power, change the shooting mode to a Basic Zone 
mode or < F>, or switch to movie shooting, the setting will automatically 
switch to [ Standard]. 
						

							3 Setting Noise ReductionN
172
Noise reduction is possible with images exposed for 1 sec. or longer.
1Select [Long exp. noise 
reduction].
Under the [z3] tab, select [Long 
exp. noise reduction
], then press 
<
0>.
2Set the desired setting.
Select the desired setting, then press 
.
Auto
For exposures of 1 sec. or longer , 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 reduce noise that  cannot be detected with 
the [
Auto] setting.
3Take the picture.
The image will be recorded with noise 
reduction applied.
Long Exposure Noise Reduction 
						

							173
3 Setting Noise ReductionN
With [ Auto] and [ Enable ], the noise reduction process after the picture is 
taken may take the same amount of time as that for the exposure. You 
cannot take another picture until the noise reduction process is 
completed.
 Images taken at ISO 1600 or higher may look grainier with the [ Enable] 
setting than with the [ Disable] or [Auto ] setting.
 With [Enable ], if a long exposure is s hot with the Live View image 
displayed, “ BUSY” will be displayed during the noise reduction process. 
The Live View display will not appear until the noise reduction is 
completed. (You cannot take another picture.) 
						

							174
You can reduce overexposed, clipped highlights.
1Select [Highlight tone priority].
Under the [z3] tab, select 
[Highlight tone priority], then press 
<
0>.
2Select [Enable].
Highlight details are improved. The 
dynamic range is expanded from the 
standard 18% gray to bright 
highlights. The gradation between the 
grays and highlights becomes 
smoother.
3Take the picture.
The image will be recorded with 
highlight tone priority applied.
3  Highlight Tone Priority N
When [ Enable ] is set, noise may increase slightly.
 With [Enable ], the settable ISO speed range will be ISO 200 or higher. 
Expanded ISO speed cannot be set.
If highlight tone priority is set, < A> is displayed in the viewfinder and on 
the LCD panel. 
						

							175
Peripheral light fall-off is a phenomenon that makes the image corners 
look darker due to the lens characteristics. Color fringing along subject 
outlines is called chromatic aberrati on. And image distortion due to lens 
characteristics is called distortion. These lens aberrations and light 
falloff can be corrected. By  default, Peripheral illumination and 
Chromatic aberration correction are set to [
Enable], and Distortion 
correction is set to [Disable].
If [F Correction data not available] is displayed, see “Lens Correction Data” on page 177.
1Select [Lens aberration 
correction].
Under the [z1] tab, select [Lens 
aberration correction], then press 
.
2Select the setting.Check that [Correction data 
available] is displayed for the 
attached lens.
Select [Peripheral illumin.], then 
press .Select [Enable], then press .
3Take the picture.The image will be recorded with the 
peripheral illumi nation corrected.
3 Correction of Lens Peripheral Illumination and AberrationsN
Peripheral Illumination Correction
Depending on shooting conditions, noise may appear on the image periphery.
The correction amount applied will be lower than the maximum correction amount 
that can be applied with Digital Photo Professional (EOS software, p.512).
The higher the ISO speed, the lower the correction amount will be.
 In Basic Zone modes, the peripheral illumination correction and 
chromatic aberration correction will be applied automatically. Distortion 
correction will not be applied. 
						

							3 Correction of Lens Peripheral Illumination and AberrationsN
176
1Select the setting.
Check that [Correction data 
available
] is displayed for the 
attached lens.
Select [Chromatic aberration], then 
press .
Select [Enable], then press .
2Take the picture.
The image will be recorded with the 
chromatic aberration corrected.
1Select the setting.
Check that [Correction data 
available] is displayed for the 
attached lens.
Select [Distortion correction], then 
press .
Select [Enable], then press .
2Take the picture.
The image will be recorded with the 
distortion corrected.
Chromatic Aberration Correction
Distortion Correction 
						

							177
3 Correction of Lens Peripheral Illumination and AberrationsN
The camera already contains data for lens peripheral illumination 
correction, chromatic aberration correction, and distortion correction for 
approx. 30 lenses. If you select [
Enable], the peripheral illumination 
correction, chromatic aberration correc tion, and distortion correction will 
be applied automatically for any  lens whose correction data is 
registered in the camera.
With EOS Utility (EOS software), y ou can check which lenses have their 
correction data registered in the camera. You can also register the 
correction data for unregistered lens es. For details, refer to the EOS 
Utility Instruction Manual.
For lenses incorporating the correct ion data, it is not necessary to 
register the correction data to the camera.
Lens Correction Data
 When distortion correction is enabled, the camera records an image 
range narrower than the one seen through the viewfinder. (Image 
periphery will be slightly trimmed and resolution slightly lowered.)
 Distortion correction will be reflected in  the captured image, but not in the 
viewfinder or Live View image during shooting.
 If you set [ Distortion correction ] to [Enable ], the maximum burst 
(p.145) during continuous  shooting will decrease.
 Distortion will not be corrected if y ou shoot a movie or set the HDR 
mode, multiple exposures, or Multi Shot Noise Reduction.
 Using distortion correction during Live  View shooting will slightly affect 
the angle of view.
 AF point display information (p.352)  and Dust Delete Data (p.405) will 
not be appended to images recorded with distortion correction applied. 
						

							3 Correction of Lens Peripheral Illumination and AberrationsN
178
Cautions for Lens CorrectionPeripheral illumination correction, chromatic aberration correction, and 
distortion correction cannot be appli ed 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 the magnified view during  Live View shooting, the peripheral 
illumination correction will not be re flected in the image displayed on the 
screen.
 The correction amount will be less if the lens used does not have 
distance information.
Notes for Lens CorrectionIf the effect of the correction is not visible, magnify the image after 
shooting and check it again.
 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 ]. 
						

							179
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 conditions, uneven exposures or colors 
across the images may result. W hen you use this feature during 
viewfinder shooting, the camera detects the frequency of the light 
source’s blinking and takes the pictur e 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 .
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 Li ve 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 images shot 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 FlickerN
180
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 in the 
viewfinder.
 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, 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, under [ 52: Viewfinder 
display ], set [Flicker detection ] to [Show ] (p.74). When the camera 
reduces the effects of the flicker when you shoot, < G> will light 
up. Under a light source which does not flicker, or if no flicker is detected, 
< G > will not be displayed.
 If [Flicker detection ] is set to [Show] and [ 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 [ Enable] before shooting 
is recommended.
 In Basic Zone modes, < G> will not be displayed,  but the effects of 
flicker will be reduced when you shoot.
 Anti-flicker shooting also works with flash. However, the expected result 
may not be obtained during wireless flash shooting.