Shooting (all modes) – Nikon D90 User Manual

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251

Shooting (All Modes)

Problem

Solution

Page

Camera takes time to turn
on.

Delete files or folders.

—

Shutter-release disabled.

• Memory card is full or not inserted.

29, 35

• CPU lens with aperture ring attached but aperture not

locked at highest f-number.

• Mode dial rotated to S with shutter speed set to

Final photo is larger than
area shown in viewfinder.

Viewfinder horizontal and vertical frame coverage is
approximately 95%.

—

Photos are out of focus.

• Rotate focus-mode selector to AF.

• Camera unable to focus using autofocus: use manual

focus or focus lock.

57, 59

Focus does not lock when
shutter-release button is
pressed halfway.

Use AE-L/AF-L button to lock focus when AF-C autofocus
mode is selected or when photographing moving subjects
in AF-A mode.

Image size can not be
changed.

Image quality set to NEF (RAW).

Can not select focus point

• Unlock focus selector lock.

• Auto-area selected for AF-area mode: choose another

mode.

173

• Press shutter-release button halfway to turn monitor off

or activate exposure meters.

Camera is slow to record
photos.

Turn long exposure noise reduction off.

167

Randomly-spaced bright
pixels (“noise”) appear in
photos.

• Choose lower ISO sensitivity or turn high ISO noise

reduction on.

74,

167

• Shutter speed is slower than 8 s: use long exposure noise

reduction.

167

AF-assist illuminator does
not light.

• Mode dial rotated to

l or m: select another mode.

• AF-assist lamp does not light for continuous-servo

autofocus. Choose AF-S. In single-point, dynamic-area, or
3D-tracking AF, select center focus point.

• Off selected for Custom Setting a3 (Built-in AF-assist

illuminator).

174

• Illuminator has turned off automatically. Illuminator

may become hot with continued use; wait for lamp to
cool down.

—

No photo taken when
remote control shutter-
release button is pressed.

• Replace battery in remote control.

241

• Choose remote control mode.

• Flash is charging.

• Time selected for Custom Setting c5 (Remote on

duration) has passed: reselect remote control mode.

180

• Bright light is interfering with remote.

—

Photos are blotched or
smeared.

• Clean lens.

—

• Clean low-pass filter.

244