In the beginning, Kiki's camera goes off five times directed at Eric, Kristen, Gary, Bet, and Frank before she takes a picture of herself, but she hands out six instantly-developed photos to the Midnight Society, including David, and in an intervention in the storytelling lays out seven, again with one of him.
Peter's invention from the 1920's relies on video cameras hidden within his house inside various mirrors. However, the first home-use video camera recorder wasn't invented to be sold commercially until 1983 by Sony.