The 150mm focal length combined with f/2.8 aperture and optical stabilization offers a 4-stop advantage for sharp handheld macro work, while three SLD elements correct aberrations for high contrast at 1:1 magnification. Its splash-proof construction and flat-field front element make it equally capable for precise copy work and weather-resistant field use. This lens is best for Nikon SLR photographers who need a dual-purpose tool for life-size insect macro and flattering facial portraits with a comfortable working distance.