Nikon D300 User Manual (en)

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❚❚Shooting
Problem
Solution
Page
Camera takes time to turn 
on.
Delete files or folders.
Shutter-release disabled.
• Memory card is full or not 
inserted.
39, 45
• CPU lens with aperture ring 
attached but aperture not locked 
at highest f-number. If B is 
displayed in control panel, select 
[Aperture ring] for Custom 
Setting f7 ([Customize command 
dials]) > [Aperture setting] to use 
lens aperture ring to adjust 
aperture.
307
• Exposure mode S selected with 
A selected for shutter speed.
106
Photos are out of focus.
• Rotate focus-mode selector to S 
or C.
62
• Camera unable to focus using 
autofocus: use manual focus or 
focus lock.
68, 71
Full range of shutter 
speeds not available.
Flash in use. Flash sync speed can 
be selected using Custom Setting 
e1 ([Flash sync speed]); when using 
optional SB-900, SB-800, SB-600, or 
SB-R200 Speedlight, choose 
[1/320 s (Auto FP)] or [1/250 s (Auto 
FP)] for full range of shutter speeds.
288
Focus does not lock when 
shutter-release button is 
pressed halfway.
Camera is in focus mode C: use AE-L/
AF-L
 button to lock focus.
69