You can also see sometimes that the best pictures are the ones where you didn't try so hard, where you were just enjoying the process - and you didn't even know why you were making the picture. It felt right. If someone asked, 'Why are you making this picture?' you probably couldn't describe it very well - and that's why it needs to be a photograph.

The reason I do workshops is so I can learn, and I am fortunate that I've probably gained more from the whole experience of teaching than any one participant has. It is all about asking.

And friends of mine that had photography class in high school would develop the film and make prints and I'd take them back to the track and give 'em away or try and sell them. Much to my parents' dismay, I majored in photography in college.

And then as I frequently do, some times I'll peek out from underneath the focusing cloth and just look around the edges of the frame that I'm not seeing, see if there's something that should be adjusted in terms of changing the camera position.

I took a workshop from him a few months after that. That experience changed my whole approach to photography. At that workshop in Yosemite in 1973 I decided I wanted to try and see if I could pursue this for myself, and I'm still trying.

To me, photography is 90% a retrospective experience. There's the part of pursuing the image, and exposing the film, but once you make the exposure, you're always looking backwards in time. I like that aspect of photography.

Whatever it takes to get the image to reach that level is what that photographer needs to do.