The Sigma 18-300mm f/3.5-6.3 DC MACRO HSM Contemporary Lens for Sigma is benefited with a focal length equivalent of 27-450mm. The lens is equipped with a Hyper Sonic Motor that ensures a quick, quiet, and accurate focusing. This lens is an all-in-one zoom for APS-C cameras that comes with a maximum aperture range of f/3.5-6.3. Also, benefiting from the inclusion of one SLD and four FLD elements, the lens has a Super Multi-Layer coating on the elements that helps achieve less flare and improved contrast. The lens construction comes with 17 elements in 13 groups and also has an optional AML72-01 close-up lens.