Polaroid grids become the photocollage joiners
In 1982 Hockney began assembling grids of Polaroids, then collages of dozens to hundreds of 35mm prints, each shot from a slightly different position and moment. The work culminated in 'Pearblossom Highway, 11–18th April 1986', a roadside scene in the California desert built from hundreds of photographs taken over about a week. He used the joiners to show that a camera could be made to record looking, which moves and accumulates, rather than a single frozen glance.