Getting photographs is not the most important thing. For me it's the act of photographing. It's enlightening, therapeutic and satisfying, because the very process forces me to connect with the world. When you make four-hour exposures in the middle of the night, you inevitably slow down and begin to observe and appreciate more what's going on around you. In our fast-paced, modern world, it's a luxury to be able to watch the stars move across the sky.

If I had to give advice to other photographers, I would first suggest quickly getting over the camera equipment questions. In my humble opinion, the make and format of a camera is ultimately low on the priority scale when it comes to making pictures.

The photographer Ruth Bernhard used to tell me that this is like asking somebody how they evolved their signature. It is not something I've ever worked on consciously. I think style is just the end result of personal experience. It would be problematic for me to photograph in another style. I'm drawn to places and subject matter that have personal connections for me and I photograph in a way that seems right. Where does it all come from, who knows?

I believe that every photographer, every artist, should choose materials and equipment based on their own vision. I don't believe that non-digital is necessarily better than digital, or the reverse for that matter. They are just different, and it is my preference and choice to remain with the traditional silver process, at least for the time being.

Instant gratification in photography is not something that I need or desire. I find that the long, slow journey to the final print captivates me far more.

There are many aspects about what and why we photograph: visual pleasure, personal empathy, intellectual stimulation, technical excellence, etc. Serious photographers and artists will try to create works that are original. Over a career period they may develop a singular identity in their images.

Beauty is very much in the mind of the beholder.