Wide-angle zoom is designed for  FF mount cameras, however can also be used with APS-C models where it provides a 24-42mm equivalent focal length range.

Constant f/2.8 maximum aperture offers consistent performance and excellent light transmission throughout the zoom range.

Three aspherical elements are used to reduce spherical aberrations and distortion in order to realize sharp imagery with accurate rendering.

Three glass-molded low dispersion elements greatly reduce color fringing and chromatic aberrations in order to produce greater clarity and color accuracy.

Bulbous front element contributes to realizing low distortion and even illumination across the frame.

Multi-coating has been applied to individual elements to suppress flare and ghosting in order to achieve greater contrast and color fidelity when working in strong lighting conditions.

A DC motor, along with a Silent Drive module, GMR magnetic AF sensor, and internal focusing design, affords especially quiet, precise, and fast autofocus performance. Additionally, a One-Touch Focus Clutch Mechanism permits switching between AF and MF modes by simply snapping the focus ring back and forth.

Built-in petal-shaped lens hood helps to prevent stray light from causing flare and also offers some protection to the front lens element.

Nine-blade diaphragm promotes a pleasing out of focus quality that benefits the use of shallow depth of field techniques.