Depth-Of-Field Preview Button - FujiFilm FinePix S5 Pro Owner's Manual

Z Nikon flash units and active assist illuminator
Under the conditions described above, the Nikon SB-800
and SB-600 Speedlights and SU-800 wireless Speedlight
commander will provide active AF illumination for the
following focus areas:
AF lens focal Normal frame
length (11 areas)
24-34 mm
35-70 mm
71-105 mm
With other Speedlights, the camera AF-assist illuminator
will be used.
To preview the effects of aperture, press and hold the
depth-of-field preview button. The lens will be stopped
down to the aperture value selected by the camera
(modes
Wide frame
(modes
(7 areas)
in the viewfinder.

Depth-of-field preview button

and ) or the value chosen by the user
and ), allowing depth of field to be previewed
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