DIRECTIONS:
First: Download a free "slow shutter" app if you are working with a smartphone. (LINKS BELOW)
Then:
1. Watch the following videos.
2. Pause where necessary to read what is shown.
And here is a review from a very lively presenter:
SLOW SHUTTER APPS:
You need an app that will allow for different shutter speeds (ex. .5", 1", 2", 4", 8" etc.)
Read before you buy!
10 Best Apps for Slow Shutter. CLICK HERE.
Slow Shutter. CLICK HERE.
Slow Camera. CLICK HERE.
Another. CLICK HERE.