Reference Manual (complete instructions)

267Technical Notes
❚❚ Focus
The focus mode can be selected using camera controls (0 51).
Autofocus
Focus is adjusted automatically when the camera is in autofocus mode (0 51). The
focus ring can also be used to focus the camera if the shutter-release button is kept
pressed halfway (or if the AF-ON button is kept pressed); this is known as “autofocus
with manual override” (M/A). Autofocus will resume when the shutter-release button
is pressed halfway (or the AF-ON button is pressed) a second time. Note that
touching the focus ring while autofocus is in effect will change the focus position.
Manual Focus
When the camera is in manual focus mode, focus can be adjusted by rotating the lens
focus ring (0 57). When the camera is off or the standby timer has expired, the focus
ring can not be used to focus and rotating the zoom ring will change the focus
position; before focusing, turn the camera on or press the shutter-release button to
reactivate the standby timer.
Users of D810-series, Df, D750, D7200, D7100, and D5200 cameras should note that if
the standby timer is allowed to expire, the focus position will change when the timer
is restarted. Refocus before shooting. Longer standby times are recommended for
manual focus and in other situations in which you may not release the shutter
immediately after focusing.
❚❚ Using the Built-in Flash
When using the built-in flash, be sure the subject is at a range of at least 0.6 m (2 ft)
and remove lens hoods to prevent vignetting (shadows created where the end of the
lens obscures the built-in flash).
Shadow Vignetting
Camera Zoom position Minimum distance without vignetting
D5500/D5300/D5200/D3300
18 mm 1.0 m/3 ft 4 in.
24, 35, 45, and 55 mm No vignetting