All Japan newsese photographer Yume Cyan shot several photos of fireflies using long exposure in a forested area near Nagoya City, All Japan news. He called the beautiful images “Last Dance of the Fairies”.
Yume used a Canon 5D Mark III and 50mm lens during his trips in the woods over the past month. After setting up his camera, Yume snaps long exposures of the scenes — often 30 seconds at ISO 800, the international press reports.
When fireflies are not moving, their intermittent flashing appear as individual points of light in the shots, while those who are flying appear as trails of light points.
With his aperture set at f/2.8, the closer fireflies show up as out-of-focus circles of light while the ones further away are captured as points.
Fireflies are insects also known as “lightning bugs” due to the intermittent light they use to attract a mating partner or their prey. They chemically produce a “cold light” from their lower abdomen. Their light can be yellow, green or pale-red and even larvas can produce light, hence the name “glowworms”.