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Sigma 12-24mm F4 DG HSM Art Review

The Sigma 12-24mm F4 DG HSM Art is a new, affordable ultra-wide-angle zoom lens, boasting an incredibly wide focal length of 12mm and a constant f/4 aperture. Read our in-depth Sigma 12-24mm F4 DG HSM Art review now, complete with full-size sample images.

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