Nikon D3000 User Manual (en)

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16
Adjust Viewfinder Focus
The camera is equipped with diopter adjustment to accommodate individual 
differences in vision. Check that the display in the viewfinder is in focus before 
framing pictures in the viewfinder.
1
Remove the lens cap and turn the camera 
on.
2
Focus the viewfinder.
Slide the diopter adjustment control up and 
down until the viewfinder display and focus 
point are in sharp focus. When operating the 
control with your eye to the viewfinder, be 
careful not to put your fingers or fingernails in 
your eye.
A
Adjusting Viewfinder Focus
If you are unable to focus the viewfinder as described above, select single-servo autofocus 
(AF-S
0 34), single-point AF (c; 0 35), and the center focus point, and then frame a high-
contrast subject in the center focus point and press the shutter-release button halfway to 
focus the camera. With the camera in focus, use the diopter adjustment control to bring the 
subject into clear focus in the viewfinder. If necessary, viewfinder focus can be further 
adjusted using optional corrective lenses.
Power switch
Focus point