A wide-angle zoom designed for DX-format sensors, this 10-24mm lens produces a 15-36mm equivalent focal length range.. Three aspherical elements are used to reduce spherical aberrations and distortion in order to realize sharp imagery with accurate rendering.. Two extra-low dispersion elements greatly reduce color fringing and chromatic aberrations in order to produce greater clarity and color accuracy.. A Super Integrated Coating has been applied to individual elements to suppress internal reflections, flare, and ghosting for improved contrast and color accuracy when working in strong lighting conditions.. Rounded seven-blade diaphragm promotes a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques.