The corner of Prince Street and Broadway, in the SoHo neighborhood of Manhattan, is one of the busiest pedestrian walkways in New York City. Dean & DeLuca, the upscale grocer, is on the southeast corner, while the Prada flagship anchors the northwest, and the two shopping meccas, along with the Apple store farther west on Prince, keep the foot traffic high.

Roaming there for the past six years, stalwart through the relentless rise of iPhones and Instagram, has been a street photographer named Jean Andre Antoine.

Like a fisherman working a tributary to a great river, Mr. Antoine sets up shop just outside the bustle, halfway down the block on Prince. On all but the days of harshest weather, he is out there leaning against the pinkish brick wall of the Dean & DeLuca building, which he uses as a backdrop in many of his photos. He sets his cameras and film on the fifth window ledge in. He calls the spot “the office.”

Mr. Antoine was mentored by another New York street photographer, Louis Mendes, and he similarly uses an old-fashioned Crown Graphic press camera and takes portraits with peel-apart instant film, for which he charges anyone interested $20 per shot.