AF-S NIKKOR lenses feature Nikon's Silent Wave Motor (SWM). This technology converts "traveling waves" into rotational energy to focus the optics. This allows for high-speed autofocus that is extremely accurate and super quiet.
Some NIKKOR lenses have a focusing mode that allows switching from autofocus to manual focus with virtually no time lag, simply by turning the focusing ring on the lens. This makes it possible to seamlessly switch to fine manual focus while looking through the viewfinder.
A lens with a curved, non-spherical surface. It is used to reduce aberrations and enable a more compact lens size. Aspherical lenses minimize coma and other types of lens aberrations, even when used at the widest aperture. They are particularly useful for correcting distortion in wide-angle lenses and contribute to a lighter, more compact design by reducing the number of standard (spherical) elements required. Aspherical lens elements correct these distortions by continuously changing the refractive index from the center of the lens.
Nikon's Super Integrated Coating is Nikon's term for the multi-layer coating of optical elements in NIKKOR lenses.