Pablo, like shooting a light painting with a DSLR, requires a tripod for the best results. Unlike shooting with a DSLR, however, the app also offers a live preview of how the completed photo may look.

She actually searched Instagram for light painting photography and found my work. She loved what she saw and we started following each other and commenting on each other’s work.

With a camera remote in one hand and a light-tube in the other, it only takes one second for Canadian photographer Eric Paré to shoot his "light-painting" photographs. Over the past three years ...