“It unfolded slowly,” Mr. Wood said. “He’s directing you, and the peak moment is when you’re fully exposed and being told to hold it. ‘Hold that pose.’ And you’re wondering what the pictures are even for. Because you’re not on set. You’re thinking, ‘This isn’t what I’m getting paid for.’”

He also felt guilty, he said, knowing that he’d agreed to show Mr. Weber his penis only because “he was the photographer for Ralph Lauren.” Mr. Weber did end up booking him for a Ralph Lauren campaign.

Bobby Roaché, a model who went for a casting with Mr. Weber in 2007 and left after he said the photographer tried to “stick his hands down my pants,” described the reaction from one of his agents: “That’s all he did? You should have gone further.”

The model Monty Hooper said Mr. Weber told him he had “to learn to be more vulnerable” at a test shoot at the photographer’s TriBeCa studio in 2014. At the shoot, Mr. Hooper stopped undressing before revealing his genitals, so Mr. Weber led him through a breathing exercise. “If I’m more vulnerable,” Mr. Hooper said he was told, “I’ll go a lot farther in my career modeling.”

“He was hugging me really closely,” Mr. Hooper said. Disturbed, he thanked Mr. Weber and left. After that, he said, the amount of work he was sent for dried up immediately.

Mr. Hooper was roommates with a number of models in an apartment maintained by Soul Artist Management, many of whom worked with Mr. Weber. “This is big for you. You have to nail this,” the agency’s founder, Jason Kanner, told one of them, Jason Boyce, before a test shoot, according to a lawsuit Mr. Boyce filed in December in New York State Supreme Court against Mr. Weber, Mr. Kanner and Little Bear Inc., the production company run by the photographer’s companion and agent, Nan Bush.