Canon 80d Manual

171
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...

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...

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...

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...

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...

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 ....

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...

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...

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...

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,...