[from the interview by David Campany]
Immediately after Zuma I made some rather straightforward photographs of the abandoned MGM Studios New York City back lot, in Culver City, Los Angeles.
These were in black and white.  I then decided to try something entirely different and around 1980 I started a body of work about things you can’t photograph: Gravity, Magnetism, which way water drains, and the things I see when I press my eyes with the palms of my hands. 
All of these images required the construction of some kind of visual metaphor.