This lens, which is a member of Sigma's Global Vision series' Art line, is made to provide genuinely remarkable optical performance and is best suited for artistic and creative uses. Although the standard zoom lens is made for full-frame Canon EF-mount cameras, it can also be used with APS-C models, giving it an equivalent focal length range of 38.4–112 mm. When employing shallow depth of field techniques, a constant f/2.8 maximum aperture offers more control over depth of field and is ideal for working in available light conditions. For better clarity and color accuracy, three Special Low Dispersion (SLD) elements significantly lessen color fringing and chromatic aberrations across the zoom range. For improved sharpness and precise rendering, four aspherical components regulate spherical aberrations and distortion. A