At 6 p.m., there will be a screening of “Tim’s Vermeer.” Produced by illusionists Penn & Teller, this intriguing documentary from 2014 explores how optical devices may have helped Dutch master painter Johannes Vermeer achieve his spectacular sense of visual realism.

In “Gathering Light: The Photographic Visions of Aryan Chappell, Roger Franklin, Amy Melious, and Robert Taylor,” four established photographers with ties to Mendocino County offer a selection of images that both reflect on their careers and explore new work.