Canon Eos Rebel T6i 750d Instruction Manual

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s: Conveying the Subject’s Movement
To freeze the motion of a fast-moving subject
Use a fast shutter speed such as 1/4000 sec. to 1/500 sec.
 To blur a running child or animal and convey an impression of 
motion
Use a medium shutter speed such as 1/250 sec. to 1/30 sec. Follow 
the moving subject through the viewfinder and press the shutter 
button to take the picture. If you use a telephoto lens, hold it steady 
to prevent camera shake.
 To blur a flowing river or fountain
Use a slow shutter speed of 1/30 sec. or slower. Use a tripod to 
prevent hand-held camera shake.
 Set the shutter speed so that the aperture display does not 
blink.
If you press the shutter button halfway and change 
the shutter speed while the aperture is displayed, 
the aperture display will also change to maintain the 
same exposure (amount of light reaching the image 
sensor). If you exceed the adjustable aperture 
range, the aperture display will blink to indicate that 
the standard exposure cannot be obtained.
If the exposure will be too dark, the maximum aperture (lowest 
f/number) will blink. If this happens, turn the < 6> dial to the left to 
set a slower shutter speed or increase the ISO speed.
If the exposure will be too bright, the minimum aperture (highest 
f/number) will blink. If this happens, turn the < 6> dial to the right to 
set a faster shutter speed or decrease the ISO speed.
To obtain a correct flash exposure, the flash output will be set 
automatically (autoflash exposure)  to match the automatically-set 
aperture. The shutter speed can be set from 1/200 sec. to 30 sec.
Shooting Tips
D  Using the Built-in Flash 
						

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To blur the background or to make everything near and far look sharp, 
set the Mode Dial to  (Aperture-priority AE) to adjust the depth of 
field (range of acceptable focus).
*< f > stands for Aperture value, which is the size of the diaphragm hole inside the lens.
1Set the Mode Dial to < f>.
2Set the desired aperture.
The higher the f/number, the wider 
the depth of field where sharper focus 
is obtained in both the foreground 
and background.
 Turning the < 6> dial to the right will 
set a higher f/number (smaller 
aperture opening), and turning it to 
the left will set a lower f/number 
(larger aperture opening).
3Take the picture.
 Focus and press the shutter button 
completely. The picture will be taken 
with the selected aperture.
f: Changing the Depth of Field
Sharp foreground and background
(With a high aperture f/number: f/32)Blurred background
(With a low aperture f/number: f/5.6)
Aperture Display
The higher the f/number, the smaller the aperture opening will be. The 
f/number displayed will differ depending on the lens. If no lens is attached to 
the camera, “ 00” will be displayed for the aperture. 
						

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f: Changing the Depth of Field
When using an aperture with a high f/number or shooting in low 
light scenes, note that camera shake can occur.
A higher aperture f/number will make the shutter speed slower. 
Under low light, the shutter speed can be as long as 30 sec. In such 
cases, increase the ISO speed and hold the camera steady or use a 
tripod.
 The depth of field depends not only on the aperture, but also on 
the lens and on the subject distance.
Since wide-angle lenses have a wide depth of field (range of 
acceptable focus in front of and behind the point of focus), you need 
not set a high aperture f/number to obtain a sharp picture from the 
foreground to the background. On the other hand, a telephoto lens 
has a narrow depth of field.
And the closer the subject, the narrower the depth of field. A farther 
subject will have a wider depth of field.

Set the aperture so that the shutter speed display does not blink.
If you press the shutter button halfway and change 
the aperture while the shutter speed is displayed, 
the shutter speed display will also change to 
maintain the same exposure (amount of light 
reaching the image sensor). If you exceed the 
adjustable shutter speed range, the shutter speed 
display will blink to indicate that the standard 
exposure cannot be obtained.
If the picture will be too dark, the “ 30” (30 sec.) shutter speed 
display will blink. If this happens, turn the  dial to the left to set 
a lower f/number or increase the ISO speed.
If the picture will be too bright, the “ 4000” (1/4000 sec.) shutter 
speed display will blink. If this happens, turn the < 6> dial to the 
right to set a higher f/number or decrease the ISO speed.
Shooting Tips 
						

							f: Changing the Depth of Field
154
To obtain a correct flash exposure, the flash output will be set 
automatically to match the set aperture (autoflash exposure). The 
shutter speed will be set automatically between 1/200 sec. - 30 sec. to 
suit the scene’s brightness.
In low light, the main subject is  exposed with the auto flash metering, 
and the background is exposed with a slow shutter speed set 
automatically. Both the subject and  background look properly exposed  
with a touch of atmosphere (autom atic slow-speed flash sync). If you 
are handholding the camera, keep it steady to prevent camera shake. 
Using a tripod is recommended.
To prevent a slow shutter speed, under [ z1: Flash control ], set 
[Flash sync. speed in Av mode ] to [1/200-1/60sec. auto ] or [1/200 
sec. (fixed) ] (p.174).
The aperture opening (diaphragm) changes only at the moment when 
the picture is taken. Otherwise, the aperture remains fully open. 
Therefore, when you look at the scene through the viewfinder or on the 
LCD monitor, the depth of field will look narrow. Press the depth-of-field preview button 
to stop down the lens to the current 
aperture setting, and check the depth of 
field (range of acceptable focus).
D Using the Built-in Flash
Depth-of-Field Preview K
While looking at the Live View image (p.192) and holding down the depth-of-
field preview button, you can see how  the range of acceptable focus will 
change as you adjust the aperture. 
						

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You can set both the shutter speed and aperture manually as desired. 
While referring to the exposure level  indicator in the viewfinder, you can 
set the exposure as desired. This  method is called manual exposure.
* stands for Manual.
1Set the Mode Dial to < a>.
2Set the ISO speed (p.122).
3Set the shutter speed and aperture.
 To set the shutter speed, turn the 
 dial.

To set the aperture, hold down the 
 button and turn the  dial.
4Focus on the subject.
 Press the shutter button halfway.
 The exposure setting will be 
displayed in the viewfinder.

The exposure level mark  indicates 
how far the current exposure level is 
from the standard exposure level.
5Set the exposure and take the picture.
 Check the exposure level indicator and set the desired shutter 
speed and aperture.
 If the exposure level exceeds ±2 stops from the standard 
exposure, the end of the exposure level indicator will display 
 or < J> in the viewfinder. (On the LCD monitor, if the 
exposure level exceeds ±3 stops,  or < J> will be displayed.)
a: Manual Exposure

< g > + 
Exposure level mark
Standard exposure index
If ISO Auto is set, the ISO speed setting will change to suit the shutter speed 
and aperture in order to obtain a standard exposure. Therefore, you may not 
obtain the desired exposure effect.
Under [z2: Auto Lighting Optimizer], if the checkmark < X> for [ Disable 
during man expo ] is removed, the Auto Lighting Optimizer can be set even 
in the < a> mode (p.136). 
						

							a: Manual Exposure
156
To obtain a correct flash exposure, the flash output will be set 
automatically (autoflash exposure)  to match the manually-set aperture. 
The shutter speed can be set from 1/200 sec. to 30 sec or bulb.
A bulb exposure keeps the shutter open 
for as long as you hold down the shutter 
button. It can be used to shoot fireworks 
and other subjects requiring long 
exposures.
In step 3 on the preceding page, turn the 
 dial to the left to set < BULB>. 
The elapsed exposur e time will be 
displayed on the LCD monitor.
I  Using the Built-in Flash
BULB: Bulb Exposures
When ISO Auto is set, you can press the  button to lock the ISO speed. If you press the < A> button and recompose the shot, you can see the 
exposure level difference on the exposure level indicator compared to 
when the < A> button was pressed.
Elapsed exposure time
 Do not point the camera toward an intense light source, such as the sun 
or an intense artificial light source. Doing so may damage the image 
sensor or the camera’s internal components.
 Since bulb exposures produce more noise than usual, the image may 
look slightly grainy.
 You can reduce the noise due to long exposures by setting [ z3: Long 
exp. noise reduction ] to [Auto ] or [Enable ] (p.138).
For bulb exposures, using a tripod and a remote switch (sold separately, 
p.351) is recommended.
 You can also use a remote controller (sold separately, p.350) for bulb 
shooting. When you press the remote controller’s transmit button, the 
bulb exposure will start immediately  or 2 sec. later. Press the button 
again to stop the bulb exposure.
 You can turn off the elapsed exposure time display by pressing the 
 button. 
						

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Four methods (metering modes) to measure the subject’s brightness 
are provided. Normally, evaluative metering is recommended.
In Basic Zone modes, metering mode is set automatically.
1Select [Metering mode].
 Under the [z 2] tab, select [Metering 
mode ], then press < 0>.
2Set the metering mode.
 Select the desired metering mode, 
then press < 0>.
q  Evaluative metering 
General-purpose metering mode suited even 
for backlit subjects. The camera sets the 
exposure automatically to suit the scene.
w  Partial metering
Effective where there are much brighter lights 
around the subject due to backlight, etc. The 
gray area in the left figure is where the 
brightness is metered to obtain the standard 
exposure.
r  Spot metering
Effective when metering a specific part of the 
subject or scene. The gray area in the left figure 
is where the brightness is metered to obtain the 
standard exposure. This metering mode is for 
advanced users.
q  Changing the Metering ModeK 
						

							q Changing the Metering Mode K
158
e Center-weighted average metering
The brightness is metered at the image center 
and then averaged for the entire scene. This 
metering mode is for advanced users.
With  q (Evaluative metering), the exposure setting will be locked when you 
press the shutter button halfway and focus is achieved. In the  w (Partial 
metering),  r (Spot metering), and  e (Center-weighted average metering) 
modes, the exposure is set at the moment  the picture is taken. (Pressing the 
shutter button halfway does not lock the exposure.) 
						

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Set exposure compensation if the exposure (without flash) does not 
come out as desired. This feature can be used in Creative Zone modes 
(except < a>). You can set the exposure compensation up to ±5 stops 
in 1/3-stop increments.
1Check the exposure level indicator.
 Press the shutter button halfway 
(0 ) and check the exposure level 
indicator in the viewfinder or on the 
LCD monitor.
2Set the compensation amount.
If the exposure is too dark, hold down 
the  button and turn the  
dial to the right (for increased exposure).
If the exposure is too bright, hold down 
the <
g> button and turn the  
dial to the left (for decreased exposure).
3Take the picture.
 To cancel the exposure 
compensation, set the exposure 
compensation amount back to < E>.
Setting Exposure Compensation K
Increased exposure 
for a brighter image
Decreased exposure 
for a darker image
If [z 2: Auto Lighting Optimizer ] (p.136) is set to any setting other than 
[ Disable ], the image may still look bright even if a decreased exposure 
compensation for a darker image is set.
 The exposure compensation amount will remain in effect even after you 
set the power switch to < 2>.
 The exposure compensation amount di splayed in the viewfinder goes up 
to only ±2 stops. If the exposure compensation amount exceeds ±2 
stops, the end of  the exposure level indicator will display  or .
 If you want to set exposure compensation exceeding ±2 stops, setting it 
with [ z2: Expo.comp./AEB ] (p.160) or with the Quick Control screen 
(p.51) is recommended. 
						

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This feature takes exposure compensation a step further by varying the 
exposure automatically (up to ±2 stops in 1/3-stop increments) with 
three shots as shown below. You can then choose the best exposure. 
This is called AEB (Auto Exposure Bracketing).
1Select [Expo.comp./AEB].
 Under the [ z2] tab, select 
[ Expo.comp./AEB ], then press .
2Set the AEB range.
 Turn the < 6> dial to set the AEB 
range.
 Press the < Y> < Z> keys to set the 
exposure compensation amount. If 
AEB is combined with exposure 
compensation, AEB will be applied 
centering on level of exposure 
compensation.
 Press < 0> to set it.
 When you press the < M> button 
to exit the menu, the AEB range will 
be displayed on the LCD monitor.
3Take the picture.
 Focus and press the shutter button 
completely. The three bracketed 
shots will be taken in this sequence: 
standard exposure, decreased 
exposure, and increased exposure.
3  Auto Exposure Bracketing K
Standard exposure Darker exposure
(Decreased exposure) Brighter exposure
(Increased exposure)
AEB range