When I started using the extreme short depth of field and single point of focus, I was trying to replicate my changing eyesight. We have binocular vision; one eye perceives space from the other. I don't experience a scene visually at F32. It's more like F1.4.

I don't know if I can articulate how I feel. Never in my wildest dreams did I think I would make it here.

How do you find a way to say what an extraordinary experience it is to be alive in this world? That is the kind of subject matter I try to work with.

I think there is an element of magic in photography - light, chemistry, precious metals - a certain alchemy. You can wield a camera like a magic wand almost. Murmur the right words and you can conjure up proof of a dream. I believe in wonder. I look for it in my life every day; I find it in the most ordinary things.

Making these photographs has often seemed to me like a kind of dance. Often I have danced badly and the world has fallen apart at my feet. But sometimes the dance has gone well and my subject and I have moved together as if with shared purpose.

I think the equipment you use has a real, visible influence on the character of your photography. You're going to work differently, and make different kinds of pictures, if you have to set up a view camera on a tripod than if you're Lee Friedlander with handheld 35 mm rangefinder. But fundamentally, vision is not about which camera or how many megapixels you have, it's about what you find important. It's all about ideas.

The raw materials of photography are light and time and memory.