Nikon D3300 Reference Manual page 315

D
The Built-in Flash
The built-in flash can be used with lens focal lengths of 18–300 mm,
although in some cases the flash may be unable to entirely light the
subject at some ranges or focal lengths due to shadows cast by the
lens (see the illustration below), while lenses that block the subject's
view of the red-eye reduction lamp may interfere with red-eye
reduction. Remove lens hoods to prevent shadows.
Shadow
The flash has a minimum range of 0.6 m and can not be used in the
macro range of macro zoom lenses. The flash may be unable to light
the entire subject with the following lenses at ranges less than those
given below:
Lens
AF-S DX NIKKOR 10–24mm
f/3.5–4.5G ED
AF-S DX Zoom-Nikkor 12–24mm
f/4G IF-ED
AF-S NIKKOR 16–35mm f/4G ED VR
AF-S DX NIKKOR 16–85mm
f/3.5–5.6G ED VR
AF-S Zoom-Nikkor 17–35mm
f/2.8D IF-ED
Shadow
Zoom position
24 mm
24 mm
35 mm
24–85 mm
28 mm
35 mm
Minimum distance
without vignetting
1.5 m/ 4 ft 11 in.
1.0 m/ 3 ft 3 in.
1.0 m/ 3 ft 3 in.
No vignetting
1.0 m/ 3 ft 3 in.
No vignetting
Technical Notes 295