30 Seconds over
Those shutter values are used in bulb mode with remote control to capture star photos. Tripod is indispensable. Shooting could last as long as many hours. However, there is a possibility that long shooting in unfavourable weather conditions could damage camera sensor.
1, 2, 4, 8, 16, 30 seconds
It is especially used in night photography with tripod. Besides, such shutter values could be used for creative shootings during the day in cloudy weather or around sea, lake or river with ND filter. ND filter has the capacity to reduce the shutter speed like 9 stops, and this helps the photographer produce much more beautiful effects with long shutter speeds.
1/2, 1/4, 1/8, 1/15 second
Used in dim light photography or at sunset. Tripod is indispensable or very high ISO values.
Used for shooting people who walk.
Used for shooting people who run.
Used for shooting sports events or dance moves.
Used for shooting of moving cars and other vehicles.
Over 1/1000 seconds
Used in shooting very fast objects.
Finally, it is vital to remember that use the flash would help photographer get better results without changing the shutter speed if applicable.