Like all Polaroid cameras, the 20×24–a sophisticated, refrigerator-sized model introduced in the ’70s and favored by Chuck Close and Julian Schnabel for large-scale portraiture–faces swift obsolescence. Investor Daniel H. Stern and visual artist John Reuter have launched an enterprise to manufacture the film and accessories that will keep the cult cam in business even after Polaroid Corporation discontinues production on instant photography film next year.