Gerd Guenther
Düsseldorf, NRW, Germany

To grab this radiant image Guenther used a specimen carrier with a hole, which the soap film stretched across. With this set-up he could capture the colorful displays caused by light hitting both the upper and lower sides of the film, which are separated by a thin layer of water. Explains Guenther: "If incident light falls to the film it is reflected partially on the upper and lower side of the film, and the colours come from the interfering light paths. The different colours only are determined by the thickness of the film." Photographing soap film is a challenge, he says, because the colors and structures are constantly shifting--as seen in this video he made.

Guenther isn't a trained scientist, rather he's an organic farmer who considers photography a "passionate hobby"--he says he takes more than 2,000 photomicrographs each year.