Nikon D1 Manual page 57

2
Rotate the main command dial to choose a shutter
speed.
Shutter-speed lock
If desired, you can lock shutter speed to the selected setting so that it does not
change accidentally when you use the main command dial for other purposes.
If you hold the button down while turning the main command dial to select
the shutter speed (A), shutter speed will be locked when you release the
button, and lock indicators will appear in the viewfinder and the control panel
on top of the camera (B). To release the lock, hold the
turn the main command dial.
A
Tips
The steps used in adjusting shutter speed and aperture can be changed using
Custom Setting 2. See "Custom Settings."
You can choose the sub-command dial as the control for selecting shutter speed
and aperture. See "Custom Settings," item 12.
If the subject will be over- or under-exposed at the selected shutter speed, a warning
will appear in the viewfinder and in the control panel on top of the camera when the
shutter-release button is pressed half way.
HI The photograph will be overexposed. Select a higher shutter speed. If the warning
persists, use a Neutral Density (ND) filter
Lo The photograph will be underexposed. Select a lower shutter speed or use a flash.
The electronic analog exposure display will show the amount the photograph will be
under- or over-exposed.
44
button down and
B
Camera Settings: Exposure Mode