Nikon D3000 User Manual

Page of 216
130
g
3
Acquire dust off reference data.
Press the shutter-release button the rest of the way down to acquire Image Dust 
Off reference data. The monitor turns off when the shutter-release button is 
pressed. Note that noise reduction will be performed if the subject is poorly lit, 
increasing recording times.
If the reference object is too bright or too dark, 
the camera may be unable to acquire Image Dust 
Off reference data and the message shown at 
right will be displayed. Choose another 
reference object and repeat the process from 
step 1.
This option determines how long the monitor remains on if no operations are 
performed during menu display and playback (Playback/menus), while 
photographs are displayed in the monitor after shooting (Image review), and how 
long the exposure meters, viewfinder, and information display remain on when no 
operations are performed (Auto meter-off ). Choose shorter auto-off delays to 
reduce the drain on the battery.
D
Image Dust Off Reference Data
The same reference data can be used for photographs 
taken with different lenses or at different apertures. 
Reference images can not be viewed using computer 
imaging software. A grid pattern is displayed when 
reference images are viewed on the camera.
Auto off Timers
G button
➜ B setup menu
Option
Description (all times are approximate)
Short
Normal
Long
Auto-off timers are set to the following values:
Playback/menus
Image review
Auto meter-off
Short
8 s
4 s
4 s
Normal
12 s
4 s
8 s
Long
20 s
20 s
1 min.
Custom
Make separate adjustments to the Playback/menusImage review, and Auto 
meter-off
 timers. When settings are complete, highlight Done and press 
J.
A
Auto off Timers
The exposure meters will not turn off automatically when the camera is powered by an 
optional EH-5a AC adapter and EP-5 power connector. The viewfinder will not turn off 
automatically when the camera is connected to a computer or printer via USB.