Nikon PC-E NIKKOR 24mm f/3.5D ED Manuel De L'utilisateur page 28

8. Focusing
En
a
Set the aperture to its maximum by pressing the aperture stop-
down button, and focus by rotating the focus ring.
b Before shooting, press the aperture stop-down button again to
stop-down the aperture.
• When using the Nikon D3 or D300 camera, you can take a picture
without operating the aperture stop-down button (the aperture can
be stopped down to a selected aperture automatically by pressing
the shutter release button without pressing the aperture stop-down
button). Alternatively, the aperture stop-down button can be used.
• While using tilting and/or shifting, the camera's electronic range
finder cannot be used to confirm correct focusing. Focus should
be confirmed by checking the image in the camera's viewfinder.
• When you change the degree of tilt and/or shift after focusing
the subject will become out of focus.
9. Depth of field
• Approximate depth of field can be
determined by checking the depth-of-
field scale.
• Using the aperture stop-down button
of the lens or the camera's depth of
field preview (stop-down) button (with
the D3 or D300 camera), the depth of
field can be observed while looking
through the camera viewfinder.
• For more information, see p. 222.
28
Fig. 10
Depth of field scale
Distance index
Fig. 11