B01IIKJT82 Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Canon Digital DSLR Camera – (Renewed)

Make sure this fitsby entering your model number. Sigma USA Authorized Dealer, 4-Year USA Warranty 17 elements in 13 groups, it features FLD (“F” Low Dispersion) glass which is the highest level low dispersion glass available with extremely high light transmission HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. Constant f/2.8 maximum aperture for working in low-light conditions, stops down to f/22. Super Multi-Layer Coating has been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imagery, even in backlit conditions.