Canon EOS 7D Mark II (G), Инструкция по эксплуатации

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3
Setting Custom Functions
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C.Fn3: Display/Operation
Focusing Screen
To suit your shooting needs, you can change to an optional focusing
screen, sold separately.
If you change the focusing screen, be sure to change this setting
to match the focusing screen type. It is to obtain the correct
exposure.
Std.: Eh-A
Standard screen provided with the camera. Precision Matte
standard focusing screen.
Eh-S: Eh-S
Super Precision Matte focusing screen makes it easier to
distinguish the focus point than with the standard Precision Matte
Eh-A focusing screen. It is ideal for fast lenses having a maximum
aperture of f/2.8 or larger. Geared for manual focusing.
However, if the lens maximum aperture is smaller than f/2.8, the
viewfinder will look darker than with the Eh-A focusing screen.
The focusing screen setting will not be cleared even if you select [
8
5:
Clear all Custom Func. (C.Fn) ].
To change the focusing screen, refer to the focusing screen’s instruction
manual. If the focusing screen does not come down with the holder, tilt
the camera forward.