Best Reviews of Sigma 20-40mm f/2.8 EX DG Aspherical Wide Angle Zoom Lens for Canon SLR CamerasSigma 20-40mm f/2.8 EX DG Aspherical Wide Angle Zoom Lens for Canon SLR Cameras Product Description:
Product Description
This large wide aperture zoom lens that covers focal lengths from an ultra-wide angle range of 20 mm to a near standard lens focal length of 40mm, with a bright maximum aperture of F2.8. The lens has a minimum focusing distance of 30cm at all focal lengths.
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