Canon Eos Rebel T6i 750d Instruction Manual

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3Changing the Image’s Aspect Ratio K
The table below shows the aspect ratio and the number of recorded 
pixels for each image-recording quality.
Image 
QualityAspect Ratio and Pixel Count (approx.)
3:24:316:91:1
3 6000x4000
(24.0 megapixels)5328x4000*(21.3 megapixels)6000x3368*(20.2 megapixels)4000x4000(16.0 megapixels)1
4 3984x2656
(10.6 megapixels)3552x2664(9.5 megapixels)3984x2240*(8.9 megapixels)2656x2656(7.1 megapixels)
a 2976x1984(5.9 megapixels)2656x1992(5.3 megapixels)2976x1680*(5.0 megapixels)1984x1984(3.9 megapixels)
b
1920x1280(2.5 megapixels)1696x1280*(2.2 megapixels)1920x1080(2.1 megapixels)1280x1280(1.6 megapixels)
c 720x480(0.35 megapixels)640x480(0.31 megapixels)720x408*(0.29 megapixels)480x480(0.23 megapixels)

The asterisked image-recording quality settings do not match the 
respective aspect ratio exactly.
 The shooting range displayed for the as terisked aspect ratio is slightly 
larger than the recorded area. Check the captured images on the LCD 
monitor when shooting.
 If you use a different camera to directly print images shot with this 
camera in the 1:1 aspect ratio, the images may not be correctly printed. 
						

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Set the ISO speed (image sensor’s sensitivity to light) to suit the 
ambient light level. In Basic Zone modes, the ISO speed is set 
automatically (p.124).
1Press the  button (9 ).
2Set the ISO speed.
While looking in the viewfinder or at 
the LCD monitor, press the < Y> 
< Z > keys or turn the < 6> dial to 
select the desired ISO speed, then 
press < 0>.
 Select [
AUTO] to set the ISO speed 
automatically (p.124).
ISO Speed Guide
* High ISO speeds will result in grainier images.
g : Changing the ISO Speed to Suit the LightK
ISO SpeedShooting Situation
(No flash)Flash Range
ISO 100 - ISO 400Sunny outdoorsThe higher the ISO 
speed, the farther the 
flash range will extend 
(p.166).
ISO 400 - ISO 1600Overcast skies or evening time
ISO 1600 - ISO 12800, HDark indoors or night
Under [ 54: Custom Functions (C.Fn) ], if [2: ISO expansion] is set to [1: 
On ], “H” (equivalent to ISO 25600) can also be selected (p.338).
 Under [ 54: Custom Functions (C.Fn)], if [ 3: Highlight tone priority] is 
set to [ 1: Enable ], ISO 100 and “ H” (equivalent to ISO 25600) cannot be 
selected (p.339).
 Shooting in high temperatures may result in images that look grainier. 
Long exposures can also cause i rregular colors in the image. 
						

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g: Changing the ISO Speed to Suit the Light K
For ISO Auto, you can set the maximum ISO speed limit within ISO 400 
- ISO 6400.
Under the [z3] tab, select [ISO Auto ], 
then press < 0>. Select the ISO speed, 
then press < 0>.
3  Setting the Maximum ISO Speed for [AUTO]K
When you shoot at high ISO speeds,  noise (such as dots of light and 
banding) may become noticeable.
 If you use a high ISO speed and fl ash to shoot a close subject, 
overexposure may result.
 When shooting in conditions that produce an extreme amount of noise, 
such as a combination of high ISO speed, high temperature and long 
exposure, images may not be recorded properly.
 As “ H” (equivalent to ISO 25600) is an expanded ISO speed setting, 
noise (such as dots of light and banding) and irregular colors will be more 
noticeable, and the resolution will be lower than usual.
 As the maximum ISO speed that can be set differs between still photo 
shooting and movie shooting (manual exposure), the ISO speed you set 
may change when you switch from still photo shooting to movie shooting. 
Even if you switch back to still photo shooting, the ISO speed will not 
revert to the original setting. The maximum ISO speed that can be set 
varies depending on the setting for [ 2: ISO expansion] under [54: 
Custom Functions (C.Fn)].
• When [ 0: Off] is set: If you set ISO 12800 during still photo shooting 
and then switch to movie shooting, ISO speed will be changed to ISO 
6400.
• When [ 1: On] is set: If you set ISO 12800 or “ H” (equivalent to ISO 
25600) during still photo shooting and then switch to movie shooting, 
ISO speed will be changed to “ H” (equivalent to ISO 12800). 
						

							g: Changing the ISO Speed to Suit the Light K
124
If the ISO speed is set to [AUTO], the 
actual ISO speed setting will be 
displayed when you press the shutter 
button halfway. As indicated below, the 
ISO speed will be set automatically to 
suit the shooting mode.
*1: Depends on the maximum ISO speed limit set (p.123).
*2: (1) If fill flash results in overexpos ure, ISO 100 or a higher ISO speed will be 
set.
(2) In the  C, 2 , 3 , 4 , 5 , x , P , and < d> modes, if you use bounce 
flash with an external Speedlite, the ISO speed will be automatically set 
within ISO 400 - ISO 1600 (or up to the maximum limit).
ISO [AUTO]
Shooting ModeISO Speed Setting
No FlashWith Flash
A /7 /C /2 /4 /5ISO 100 - ISO 6400
ISO 400*2
(Except in the  A, C, 
6 , and F  modes.)
3ISO 100 - ISO 1600
8C/P/ x/6 /GISO 100 - ISO 6400
FISO 100 - ISO 12800
d /s /f /aISO 100 - ISO 6400*1
With bulb exposuresISO 400
When [AUTO] is set, the ISO speed is indicated in whole-stop increments. 
However, the ISO speed is actually set in finer increments. Therefore, in the 
image’s shooting information (p.306), you may find an ISO speed such as 
ISO 125 or ISO 640 displayed as the ISO speed. 
						

							125
By selecting a Picture Style, you can obtain image characteristics 
matching your photographic ex pression or the subject.
In Basic Zone modes, [D] (Auto) is set automatically.
1Press the  button.
The Picture Style selection screen will 
appear.
2Select a Picture Style.
 Select a Picture Style, then press 
.
 The Picture Style will be set.
D Auto
The color tones will be adjusted automatically to suit the scene. 
The colors will look vivid, es pecially for blue skies, greenery and 
sunsets, and in nature, outdoor and sunset scenes.
P Standard
The image looks vivid, sharp, and crisp. This is a general-purpose 
Picture Style suitable for most scenes.
A Selecting a Picture StyleK
Picture Style Characteristics
You can also set the Picture Style with [z2: Picture Style ].
If the desired color tone is not obtained with [Auto], use another Picture Style. 
						

							A Selecting a Picture Style K
126
QPortrait
For nice skin tones. The image l ooks softer. Suited for close-up 
portraits.
By changing the [ Color tone] (p.128), you can adjust the skin 
tone.
R Landscape
For vivid blues and greens, and very sharp and crisp images. 
Effective for impressive landscapes.
S Neutral
This Picture Style is for users who prefer to process images with 
their computer. For natural colors and subdued images with 
modest brightness and color saturation.
U Faithful
This Picture Style is for users who prefer to process images with 
their computer. The color of a subject that is captured in sunlight at 
a color temperature of 5200K will be adjusted to match the 
subject’s colorimetrical color.  For subdued images with modest 
brightness and color saturation.
V Monochrome
Creates black-and-white images.
W User Def. 1-3
You can register a base style such as [ Portrait], [Landscape ], a 
Picture Style file, etc., and adjust  it as desired (p.130). Any User 
Defined Picture Style that has not been set will have the same 
default settings as the [ Auto] Picture Style.
Black-and-white images shot in JPEG cannot be turned into color. If 
you want to later shoot pictures in color, make sure the 
[Monochrome ] setting is canceled. When [ Monochrome] is 
selected, < 0> will appear in the viewfinder. 
						

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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 129.
1Press the  button.
The Picture Style selection screen will 
appear.
2Select a Picture Style.
 Select a Picture Style, then press the 
 button.
3Select a parameter.
Select a parameter such as 
[Sharpness ], then press < 0>.
4Set the parameter.
 Press the < Y> < Z> keys 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.
 Any parameter settings different from 
the default will be displayed in blue.
A  Customizing a Picture Style K
By selecting [ Default set.] in step 3, you can revert the parameter 
settings of the respective Picture Style to its default.
 To shoot with the Picture Style you adjusted, follow step 2 on page 125 to 
select the adjusted Picture Style, then shoot. 
						

							A Customizing a Picture Style K
128
g
 Sharpness
Adjusts the sharpness of the image.
To make it less sharp, set it toward the  E end. The closer it is to  E, 
the softer the image will look.
To make it sharper, set it toward the  F end. The closer it is to  F, the 
sharper the image will look.
h  Contrast
Adjusts the image contrast and the vividness of colors.
To decrease the contrast, set it toward the minus end. The closer it is 
to G , the more muted the image will look.
To increase the contrast, set it toward  the plus end. The closer it is to 
H , the crisper the image will look.
i  Saturation
Adjusts the color saturation in the image.
To decrease the color saturation, set it toward the minus end. The 
closer it is to  G, the more diluted the colors will look.
To increase the color saturation, set it toward the plus end. The 
closer it is to  H, the bolder the colors will look.
j  Color tone
Adjusts the color tone of skin.
To make the skin tone redder, set it toward the minus end. The 
closer it is to  G, the redder the skin tone will look.
To reduce skin redness, set it toward the plus end. The closer it is to 
H , the more yellow the skin tone will look.
Parameter Settings and Effects 
						

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A Customizing a Picture Style K
For Monochrome, you can also set [ Filter effect] and [Toning effect ] in 
addition to [ Sharpness] and [Contrast ] explained on the preceding 
page.
kFilter Effect
With a filter effect applied to a 
monochrome image, you can make 
white clouds or green trees stand out 
more. 
lToning Effect
By applying a toning effect, you can 
create a monochrome image in that 
color. It can make the image look more 
impressive.
The following can be selected: [ N:None], 
[S:Sepia ], [B:Blue ], [P:Purple ] or 
[G:Green ].
V Monochrome Adjustment
FilterSample Effects
N: NoneNormal black-and-white image with no filter effects.
Ye: YellowThe blue sky will look more natural, and the white clouds will look 
crisper.
Or: Orange The blue sky will look slightly darke
r. The sunset will look more 
brilliant.
R: RedThe blue sky will look quite dark. Fall leaves will look crisper and 
brighter.
G: GreenSkin tones and lips will appear muted. Green tree leaves will look 
crisper and brighter.
Increasing the [ Contrast] will make the filter effect more pronounced. 
						

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You can select a base Picture Style such as [Portrait] or [Landscape], 
adjust its parameters as des ired and register it under [User Def. 1], 
[User Def. 2], or [ User Def. 3].
You can create multiple Picture Styles with different settings for 
parameters such as sharpness and contrast.
You can also adjust the parameters of a Picture Style that is registered 
to the camera with EOS Utility (EOS software, p.404).
1Press the  button.
The Picture Style selection screen will 
appear.
2Select [User Def. *].
 Select [ User Def. * ], then press 
< B >.
 The Detail setting screen will appear.
3Press < 0>.
With [ Picture Style] selected, press 
< 0 >.
4Select the base Picture Style.
 Select the base Picture Style, then 
press < 0>.
 To adjust the parameters of a Picture 
Style that is registered to the camera 
with EOS Utility (EOS software), 
select the Picture Style here.
A Registering a Picture Style K