Nikon D3S User Manual page 68

4
Replace the diopter adjustment
control.
Push the diopter adjustment control
back in (e).
s
A
Diopter-Adjustment Viewfinder Lenses
Corrective lenses (available separately; 0 373)
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).
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