Nikon D1 - Manual (Page 19)

6
2 Attach the Lens
After making sure that the camera is off, mount the lens and set the
aperture to its minimum setting (largest f-number).
2 .1 Attach the lens to the camera body
Tip
A B
Turn the camera off (A). Align the mounting mark on the lens with the
mounting mark on the camera body, then, being careful not to touch the
lens-release button, turn the lens counter-clockwise until it locks into
place (B).
If no lens is attached, or if a non-CPU lens is attached (see “Technical
Notes: Compatible Lenses”), F-- will appear in the top control panel and
viewfinder when the camera is turned on (if the exposure mode is set
to programmed auto or shutter-priority auto, the exposure mode
indicator will also blink).
2 .2 Set aperture to its minimum setting
Set the lens to minimum aperture (maximum f-number).
If the lens is not set to the minimum aperture, a blinking FEE indicator
will appear in the viewfinder and in the control panel on top of the
camera when the camera is turned on. The shutter can not be released
while this indicator is displayed.
First Steps: Attach the Lens
To get the most from your camera, use a D-Type AF Nikkor lens (see “Technical Notes:
Compatible Lenses” for more information).