Andy Warhol. Polaroids 1958-1987

You know the silkscreen portraits: Marilyn, Liz, Mao, the society wives rendered in acidic color. You have probably never wondered where the faces beneath them came from. They came from here, from stacks of Polaroids Warhol shot with a Big Shot, a cheap fixed-focus portrait camera the company discontinued for doing too little, which is precisely why he loved it. The limitation was the aesthetic.

What does a camera that can do only one thing teach a portraitist? The Big Shot focused at a single fixed distance, so Warhol rocked backward and forward until the sitter snapped sharp, then hit them with flat frontal flash that bleached skin to a pale mask and pressed features into graphic shapes. Every commissioned subject got the same unsparing treatment, the same over-lit stare. The machine did the flattening so he did not have to negotiate it, or flatter anyone by hand.

Follow one face through the process and the method clarifies. A sitter, a collector's wife or Jane Fonda or a gallerist, would run through roll after roll while Warhol kept up a light patter and the camera did its bleaching work, and from dozens of near-identical frames he would choose one to enlarge, trace, and silkscreen. The Polaroid was the negative, the audition, and the flattery machine at once. Seeing the rejected frames beside the chosen one is the closest thing here to watching him think.

The range runs from 1958 to 1987, and it is not only the commission factory. There are SX-70 snapshots of the whole Warhol weather system: Studio 54 nights, drag self-portraits, still lifes of cakes and shoes, boyfriends and hangers-on and the occasional genuine star caught mid-blink. The pictures are not always good, and they are almost always telling. Taken as a set, they show a camera used as a social prosthetic, a reason to be in the room and slightly outside it at the same time. The mundane and the mythic get identical care.

The Big Shot portraits are the real lesson. Warhol grasped that consistency is a style. By forcing one lighting setup, one distance, one flat affect onto senators and drag queens alike, he turned portraiture into a system, and the system flattered precisely by refusing to flatter. A society client emerged looking exactly as strange and exactly as iconic as everyone else, which was the whole promise. The consistency is the artwork; the individual sitter is almost incidental to it.

Quantity is the cost. Thousands of these exist, and the edit here is broad rather than ruthless, so long stretches read as inventory instead of selection. The stray SX-70 frames that delight a Warhol scholar will try a viewer who wanted only the strongest images. Beside the focused narrative of Warhol on Basquiat, this is the sprawling raw material, not the shaped story.

Still, a practical provocation waits in these pages for the working portraitist. Set the camera to one configuration for an afternoon. Same light, same distance, same background, every sitter, no exceptions. Watch what surfaces when the only variable left is the face and the person wearing it, and for a few hours you will be running the very experiment Warhol built an entire portrait practice on top of. You will also see why he never trusted one exposure to tell the truth.