89
Exposure Control
5
Depth-of-field AE
Exposure Warnings
•
If the aperture blinks, the desired depth of field cannot be obtained. (However,
you can still take the picture and obtain a proper exposure.) Use a wide-angle
lens or move away from the subject and repeat steps
2
to
4
.
•
If both the shutter speed and aperture blink, you can still take the picture, but the
picture will be too dark or too bright. For details, see the “Exposure Warnings”
table (→p.157).
•
If the 30" shutter speed and the lens’
maximum aperture (lowest f/
number) blink, underexposure will
result and depth-of-field AE will not
work.
•
If the 8000 shutter speed and the
lens’ minimum aperture (highest f/
number) blink, overexposure will
result. Use a neutral density (ND)
filter to reduce the amount of light
entering the camera.
•
With automatic AF point selection in the depth-of-field AE mode, only the center
AF point will be used for focusing.
•
If a slow shutter speed has been set, use a tripod to prevent camera shake.
•
If ( ) elapse before you complete the DEP procedure, the dEP point(s) set so
far will be canceled. In such a case, you must start over again.
•
To cancel the depth-of-field AE mode midway, press the < > button, < >
button, or <
> button.
•
To further increase the depth of field, use a wide-angle lens.
•
Setting dEP points 1 and 2 at the same point on the subject will make the depth
of field shallow. The foreground and background will then be blurred, making the
subject stand out. Using a telephoto lens enhances this effect.
•
When using a zoom lens, do not change the zoom focal length while using the
depth-of-field AE mode.
•
After setting one or two dEP points, do not select a different AF point. Otherwise,
the dEP point(s) that you already set will be canceled and you will have to start
over with the newly selected AF point.
•
Using flash with the depth-of-field AE mode will obtain the same result as using
Program AE with flash.
•
If depth-of-field AE is used with a lens having a focusing limiting switch (like the
EF 300mm f/2.8L IS USM lens), set the switch to the maximum focusing distance
range.
