Light is the essence of photography, from sun-bleached mornings to twilight's last gleam. For its new exhibition, the Mpls Photo Center put out a call for images taken in the hours of light's absence. Elaborately titled "Early Morning After Dark: From Dusk's Last to Dawn's First Light," the show follows a format used successfully before by the center, picking more than 100 images out of dozens of applicants worldwide. Pictorial and dramatic, the scenes range from brightly lit urban parking lots to starry wilderness skies and period motels. More event details.

Conceived in Berlin last summer, the international Bring Your Own Beamer (BYOB) project lands in the Twin Cities. The one-night-only exhibition of artists and their digital projectors features more than 30 local, national and international digital artists whose work will overlap and intertwine throughout the night. Artists include locals Yamahaha, Michael Cina, Eric Timothy Carlson, Playatta, Albert Elmore and MathStatic; Finnish painter Jaakko Pallasvuo, Texas-based media artist Ben Aqua, with a performance by Elite Gymnastics. (9-11 p.m. Sat 6/25, free. Thorp Building, www.byobmpls.com.)