Depth Of Field Preview - Canon EOS 700D Instruction Manual

f: Changing the Depth of Field
D Using the Built-in Flash
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 automatic flash, and
the background is exposed with a slow shutter speed set automatically.
Both the subject and background look properly exposed (automatic
slow-speed flash sync). If you are handholding the camera, keep it
steady to prevent camera shake. Using a tripod is recommended. steady to prevent camera shake. Using a tripod is recommended. 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 [1/200-1/60 sec. auto] or [1/200
sec. (fixed)] (p.219).
Depth of Field PreviewN
The aperture opening (diaphragm) changes only at the moment The aperture opening (diaphragm) changes only at the moment when The aperture opening (diaphragm) changes only at the moment
the picture is taken. Otherwise, the aperture remains fully open. the picture is taken. Otherwise, the aperture remains fully o the picture is taken. Otherwise, the aperture remains fully o
Therefore, when you look at the scene through the viewfind Therefore, when you look at the scene through the viewfind Therefore, when you look at the scene through the viewfinder or on the
LCD monitor, the depth of field will look narrow. LCD monitor, the depth of field will look narrow. LCD monitor, the depth of field will look narrow.
While looking at the Live View image (p.146) and holding down the depth-of-
field preview button, you can change the aperture and see how the depth of
field changes.
114
1: Flash control 1: Flash control
1/200-1/60 sec. auto 1/200-1/60 sec. auto
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).