Regardless of the focal length of your favorite lens, I'd venture to say you've been in situations where you've tried to focus in tight on your subject and inevitably hit the wall—the minimum focus point of your lens. Sure you can crop, but in a perfect world it would be swell if each of our lenses would focus as close to our subjects as our mind's eye focuses. Alas, the world isn't perfect... but we do have macro lenses.
Zoom lenses have become increasingly popular over the years for a number of reasons, including convenience (less lost time swapping lenses and in turn less chance of getting dust on the camera sensor and/or missing the shot altogether), weight (one slightlier heavier zoom can replace two or three slightly lighter but collectively heavier lenses) and slimmer camera bags (have you flown with carry-on baggage lately?).
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