Nikon 24mm-f-35D-PC-E-Nikkor - Manual (Page 29)

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• When the lens is mounted to a camera other than the D4
or D3-Series, shift and/or tilt the lens with care. Failure to
do so, may result in your fingers being nipped between
the lens and the camera body, or the lens scratching the
camera body.
The shift function
Fig. 7
When the shift knob is rotated, the lens is shifted horizontally (or
vertically, when the lens is revolved) parallel to the camera body
(±11.5 mm).
By shifting, you can recompose the frame of the shot
without moving the camera.
This lets you correct the perspective distortion of the
subject or exclude unwanted objects from appearing in
front of the main subject (p. 207).
• After shifting, tighten the shift lock release knob to fix
the lens’ shift position.
Note: When shifting the lens, be careful not to pinch your
fingers between the lens and the grip of the camera
body.