Alex Webb and Rebecca Norris Webb, a husband and wife photography team, documented Rochester after Eastman Kodak’s bankruptcy in their new book, “Memory City,” published by Radius Books. Previously they published “Violet Isle,” a volume on modern-day Cuba. Ms. Norris Webb’s book “My Dakota” was featured on Lens in 2012, while Mr. Webb’s book “The Suffering of Light” was featured on Lens in 2011. He is a member of Magnum Photos. Their conversation with James Estrin has been edited.