Nikon D3X - Manual (Page 73)

47
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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 shooting.
1
Lift the diopter adjustment knob.
Remove the lens cap, turn the camera
on, and pull the diopter adjustment
knob out (q).
2
Focus the viewfinder.
Rotate the diopter adjustment knob (w)
until the viewfinder display, focus points,
and AF area brackets are in sharp focus.
3
Replace the diopter adjustment
knob.
Push the diopter adjustment knob back
in (e).
A
Diopter Adjustment Viewfinder Lenses
Corrective lenses (available separately; pg. 389)
can be used to further adjust viewfinder diopter.
Before attaching a diopter-adjustment viewfinder
lens, remove the DK-17 viewfinder eyepiece by
closing the viewfinder shutter to release the
eyepiece lock (q) and then unscrewing the
eyepiece as shown at right (w).