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When the Electronic Dial Lock is “On,” all currently set values in “Av ” (Aperture Priority
AE), “Tv” (Shutter Priority AE) and “M” (Manual mode) cannot be adjusted with the front
or rear dials. This prevents accidental change of shutter speed or aperture values.
How to set dial lock
Press the multiple exposure mode and auto
bracketing mode button together for about 1
second so that “On,” flashes on the display.
How to release dial lock
To release dial lock, press the same buttons as
in "How to set dial lock" so that “OF” flashes on
the display.
When dial lock is set, the dial lock display "L"
appears on the external LCD.
Front / Rear Dial Lock Function
When the dial lock is ON, the shutter speed and aperture will not change even if you
turn the front or rear dial.
When you activate the electronic dial lock, and if you then operate the electronic
dial, the dial lock indicator “L” on the main panel blinks for three seconds to show
that the electronic dial lock is functioning.
Dial lock can not be set when the exposure mode is “P” (program AE).
Even while dial lock is set, the front dial or rear dial can still be used to perform the
various settings. (Dial lock is temporarily released.)
The setting will be stored after one second.
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Depth of Field
Depth of field (D.O.F.) is defined as the zone of sharpness before and behind the plane
of focus. It depends on distance to subject, focal length of lens, aperture setting and
distance the lens is focused at.
In addition to visual observation via the depth of field preview button, the D.O.F. can be
determined by using the depth of field scale on each lens. The f/stop numbers appear on
both the right and left side of the white index mark in the center of the scale. Simply read
the figures which appear above the f/stop numbers on the distance scale of the lens.
(see illustration below)
Depth of Field / Depth of Field Preview
When the aperture is
stopped down
(the subject depth is large)
When the aperture is open
(the subject depth is small)
After focusing, press the preview button.
The diaphragm will be stopped down to the set
aperture.
While operating the preview button, you can-
not release the shutter.
Depth of Field Preview Button
When the preview button is pressed in, the depth of field for the aperture set on the
camera can be checked by looking through the viewfinder.