Detecting the presence of a photogenic subject
Chapter 1, Getting the Most out of Your Camera System, proposed that a photograph ought to capture a subject in a moment. Let's explore this notion further as we search for ways to detect a desirable or "photogenic" subject and moment.
As a medium, photography uses light, an aperture, a photosensitive surface, and time to draw an image of a scene. The earliest photographic technology, in the 1820s, lacked the resolution and speed to convey a detailed subject in a precise moment, but it was able to capture a grainy scene on a sunny day. Later, with better lenses, flashes, and photosensitive surfaces, photography became capable of capturing a sharp scene, a formal portrait, a faster and more natural ...
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