Nikon D3500 Reference Manual complete instructions - English - Page 121

Long Time-Exposures (M Mode Only) Select the following shutter speeds for long time-exposures of moving lights, the stars, night scenery, or fireworks. • Bulb (A): The shutter remains open while the shutter-release button is pressed all the way down. Use a tripod to prevent blur. • Time (&): Start the exposure using the Shutter speed: Bulb (35-second exposure) Aperture: f/25 shutter-release button. The shutter remains open until the button is pressed a second time. Before proceeding, mount the camera on a tripod or place it on a stable, level surface. To prevent light entering via the viewfinder from appearing in the photograph or interfering with exposure, we recommend that you cover the viewfinder with your hand or other objects such as an optional eyepiece cap (0 282) before taking pictures without your eye to the viewfinder (0 61). Nikon recommends using a fully charged battery or an optional AC adapter and power connector to prevent loss of power while the shutter is open. Note that noise (bright spots, randomly-spaced bright pixels, or fog) may be present in long exposures. P, S, A, and M Modes 97