A 29–400mm equivalent, this lens offers the broadest zoom range of any Sigma and is the company’s only superzoom with stabilization. Smooth zoom action, rapid and silent AF, and only Slight-range distortion.
Standout Spec: 13.8X zoom range—'nuf said.
Lens Test: Sigma 18–250mm f/3.5–6.3 DC OS HSM AF
Nikon AF-S DX VR Zoom-Nikkor 18–105mm f/3.5–5.6G ED
Sony 70-400mm f/4-5.6G SSM
Sigma 70–300mm f/4–5.6 DG OS
Sigma 70–300mm f/4–5.6 DG APO Macro
Canon EOS Rebel T2i