Canon EOS REBEL XS Manual Do Utilizador
f
: Changing the Depth of Field
74
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.
To prevent slow-speed sync, select the [7 Custom Functions (C.Fn)]
menu’s [Flash sync. speed in Av mode] (p.154) and set it to [1: 1/
200sec. (fixed)].
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.
To prevent slow-speed sync, select the [7 Custom Functions (C.Fn)]
menu’s [Flash sync. speed in Av mode] (p.154) and set it to [1: 1/
200sec. (fixed)].
Press the depth-of-field preview button
to stop down to the current aperture
setting. You can check the depth of field
(range of acceptable focus) through the
viewfinder.
to stop down to the current aperture
setting. You can check the depth of field
(range of acceptable focus) through the
viewfinder.
Using the Built-in Flash
Depth-of-Field PreviewN
If it is difficult to discern the depth of field, first set the lowest f-number. Then
hold down the depth-of-field preview button and look through the viewfinder
while turning the <6> dial to the right. As the aperture gets smaller, the
viewfinder will gradually look darker. You can also see how the depth of field
increases.
hold down the depth-of-field preview button and look through the viewfinder
while turning the <6> dial to the right. As the aperture gets smaller, the
viewfinder will gradually look darker. You can also see how the depth of field
increases.
COP
Y