Satoki Nagata’s nighttime street photography in Chicago.

Many of Satoki Nagata’s images might seem to be multiple exposures or to have been manipulated in postproduction, but all are single exposures of Chicago’s nighttime. Trying to figure out a workaround for the city’s dark winter months, Nagata experimented with flash photography. When combined with lower shutter speed, this technique, which he uses in his series “Lights in Chicago,” creates ethereal photographs that appear to be layered.