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Depth-of-Field Preview Button
The depth of field is the zone of acceptable focus in front of and behind the subject. You
can preview this zone using the Depth-of-Field Preview button.
The Depth-of-Field Preview button will not work properly if there is no PC Card inserted.
In Aperture-Priority Auto or
Manual Exposure mode, press the
Depth-of-field Preview button to
stop the lens down to the aperture
that was set with the Sub-Command
Dial.
In Programmed Auto or Shutter-
Priority Auto Exposure mode, the
lens will be stopped down to the
automatically set aperture. When
you press the Depth of Field
Preview button, the viewed image
becomes progressively darker as the
aperture gets smaller. Those
portions of the image that appear in
focus when the button is pressed are
within the depth of field.
Be aware of the following when
using the Depth of Field Preview
button:
✔ When using lenses with a meter
coupler, it is not possible to
attain correct exposure because
exposure must be determined by
full-aperture metering.
✔ Do not use the Spot Metering
system when using the Depth-
of-Field Preview button.
✔ During preview, the aperture
cannot be adjusted and
autofocus is not possible.
MODE