中古 Nikon 18-135mm F3.5-5.6 G ED AF-S

Bought this as a used walkaround lens and the autofocus on my D90 is snappy, though the barrel does extend a bit when zooming past 100mm. For the price, the 18-135 range covers almost everything I shoot on a day out, and the glass is surprisingly clean for a pre-owned copy.

The ED glass really cuts down on chromatic aberration, and the 18-135mm range covers everything from wide landscapes to tight portraits. Focuses quickly enough for my walkaround shooting, and the used condition was better than I expected—just a few minor scuffs on the barrel.

AF-S focusing is snappy enough for chasing my kids around the yard, and the 18-135mm range saves me from swapping lenses on a walk. For a used copy, the glass is clean and the zoom ring feels solid. Best $200-ish I've spent on gear in a while.