Nikon AF-S 12-24mm f4.0 G ED IF DX

Key Features
 
12-24mm ultra-wide angle G type zoom lens equivalent to 18-36mm in 135 format
ED (Extra low Dispersion) glass elements minimize chromatic aberration to provide higher resolution and superior contrast
Nikon's exclusive SWM for swift auto focusing with superior accuracy and ultra-quiet operation.
Three aspherical lens elements minimize distortion, especially at the periphery, for superior optical performance.
Lightweight design that fits comfortably on compact digital SLR bodies..