Nikon F-Mount/FX Format | Aperture Range: f/2.4 to f/22 | Two Aspherical Elements | Two ED and Three HR Elements | Neutrino Coating | Manual Focus Design with Focus Lock | Rubberized Focus Ring | Depth of Field and Focus Distance Scales | Weather-Sealed ABS Plastic Housing | | Rounded Nine-Blade Diaphragm | Limited 2-Year Warranty