Ultra-wide 20 mm to mid-tele 70 mm zoom range, for a range of movie and still subjects, Outstanding G Lens image quality with high resolution at all focal lengths, Peak performance AF with two XD Linear Motors for precise, fast, quiet focus drive, Refined movie imagery with minimized focus breathing and focus/axial shift while zooming, Compact, lightweight design for superb image quality and versatility in any situation, Excellent close-up performance of 9.8" (25cm) throughout the zoom range (manual focus), Constant F4 maximum aperture throughout zoom range for greater flexibility, Circular aperture with 9-blade iris for naturally rendered bokeh, Active Mode image stabilization highly effective at ultra-wide 20 mm, Dedicated aperture ring, click/de-click and iris lock switches, Customizable focus hold buttons provided in two locations for easy access and control, ED glass lens elements correct spherical and chromatic aberrations, Linear Response MF for precise, repeatable manual focus control, Instant auto/manual focus selection via AF/MF switch, Front fluorine coating repels fingerprints, dust, water and oil, Dust and moisture resistant design for reliability in challenging conditions, Front 72mm threaded for screw-on filters, Petal shaped, bayonet mount lens hood ALC-SH174 supplied,