Zoom range can be a very subjective and personal choice, hinging on individual shooting style and preferred subjects. The 16-105mm range of this lens is a "sweet spot" for many photographers, wide enough at the 16mm end to capture indoor scenes and long enough at 105mm to fill the frame with relatively distant subjects. Comfortable handling is another plus, facilitated by a compact, lightweight design and an auto-clutch mechanism that prevents focus ring rotation during autofocus operation, so you can comfortably cradle the lens in your hand while shooting. Of course comfort isn't everything. A precision optical design delivers subperb image quality throughout the entire zoom range.