Nikon D80 - Manual (Page 63)

51 Reference: P, S, A, and M Modes / Mode M (Manual)
Long Time-Exposures
Shutter speeds of “bulb” and “--” can be used for long time-exposure photographs of moving
lights, the stars, night scenery, or fi reworks. To prevent blurring caused by camera shake, use
a tripod and an optional remote control ( 123) or remote cord ( 123).
Shutter speed Description
Shutter remains open while the shutter-release button is held down.
Optional ML-L3 remote control required (
123). Select mode M, choose a shutter
speed of “bulb,” and then select delayed remote or quick-response remote mode
(
38). Shutter opens when the shutter-release button on the remote control is
pressed and until the button is pressed a second time or remains open for thirty
minutes.
To prevent loss of power before the exposure is complete, use a fully charged battery or an
optional AC adapter. Note that noise may be present in long exposures; before shooting,
choose On for the Long exp. NR option in the shooting menu ( 83).
35 s, f/25