FujiFilm X-T2 - Manual (Page 87)

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5
T
a
k
ing Phot
og
raphs
P, S, A, and M Modes
Sensitivity and Depth of Field
If you choose a fast shutter speed when the subject is poorly
lit, the camera autoexposure program will select a wider ap-
erture. This will produce the correct exposure but may also
reduce depth of fi eld so that less of the area behind and in
front of your subject appears to be in focus. To stop aperture
down and increase depth of fi eld, select a higher sensitivity.