Which lens should I buy for my camera? It's such a simple question, but choosing the right lens or lenses is actually one of the most important photographic decisions you can make. Nothing affects the quality of a photo more than the lens. It's no longer just about the megapixels—it's the glass that makes all the difference. This book isn't a simple catalog of available lenses. New products are coming out all the time, and comparing specific lenses can be difficult. Instead, author NK Guy gives you all the information you need to make smart buying decisions. Optical technology is demystified, arcane terminology is decoded, and practical tips are provided.