Lens Technology: XLD (eXtra Low Dispersion) lens elements

XLD lens elements made from specialized ultra-high-grade glass allow much greater control over chromatic aberration and magnification aberrations

XLD lens elements made from specialized ultra-high-grade glass allow much greater control over chromatic aberration and magnification aberrations than LD lens elements. XLD lens elements deliver the highest possible contrast, the finest detail, and superior imaging performance throughout the entire zoom range.