It does not appear so. The article says the hospital called him whenever there was a fetus available and that he had to complete his photography within a few ho

It does not appear so. The article says the hospital called him whenever there was a fetus available and that he had to complete his photography within a few hours. He had an aquarium-like tank at the hospital to suspend the deceased fetus in to take the pictures, which is why they look like they are floating. The single image taken in utero may have been during a procedure. The article's phrasing doesn't make it sound like it was done primarily so he could have a picture.