Chapter One. What Is Aperture?

In the spring of 1995, I found myself driving across central Utah. Though I owned a digital camera, it was a Kodak DC40 with a resolution of 756 × 504 pixels. Digital photography was in its infancy, with the world’s first mass-market 1-megapixel camera still a year away, so I was packing film cameras. In addition to a regular 35mm SLR, I had a medium-format twin-lens reflex camera. I shot a lot of pictures on that trip, both 35mm and medium format.

When I got home, I carried my dozen or so rolls of film to the photo lab, and then a few days later I picked up my negatives and contact sheets. It was only when I returned home with the results that I realized that some images that I remembered shooting were not there. ...

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