Nikon D1H User Manual page 199

Restoring Custom Settings to Default Values
Default settings for the current settings bank can be restored by holding the
and buttons down together for more than two seconds. The CUSTOM
indicator in the rear control panel will start to blink. Release both buttons while the
indicator is blinking and then press both buttons again. All settings in the current
settings bank, together with the camera settings listed above, will be reset to default
values. Settings in other banks are not affected.
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