The-Digital-Picture has completed their review of the Sigma 12-24mm f/4L DG HSM Art. Image Quality From the always-important image sharpness perspective, this lens is a very good performer with a caveat that I will of course explain.
B&H Photo has stock of the brand new Sigma 12-24mm f/4 DG Art series lens. PRODUCT HIGHLIGHTS EF-Mount Lens/Full-Frame Format Aperture Range: f/4 to 22 FLD and Aspherical Elements Super Multi-Layer Coating Hyper Sonic AF Motor, Manual Override Rounded 9-Blade Diaphragm TSC Material, Brass Bayonet Mount Dust- and Splash-Proof Construction Compatible with Sigma USB Dock Read more...