Taking Your Shots
Here’s how to use Slow Shutter Cam to capture your first light-trails image:
How Does the App Do That, Anyway?
Slow Shutter Cam takes a series of long-exposure photos in rapid succession and stitches them together into a single image showing the continuous trail of light. This is why keeping your camera steady and still is important. Ideally, the shots link or overlap at the same point within the frame so that the result looks like a single shot.
Practice and Play
Because you must activate and deactivate the shutter manually, you need to develop a feel for how long to wait between these two actions. When you photograph cars, for example, leave the shutter open as long as it takes a car in the distance to pass your phone to capture a full trail. When using the long-exposure setting to shoot something like a flickering fire, use a shorter exposure time. Part of the fun of long-exposure photography is experimenting to find the settings that yield the most impressive images of various subjects.
About Light Trail Photography
At the most general level, light-trail photos capture movement in a still image. The light of the moving object is the focus and creates a trail across the frame. Such photos can be exceptionally beautiful and interesting.