I recently tested the astroimaging capability of the 20mm Sigma f1.4 DG HSM Art lens with my two DSLR cameras. Released in fall 2015, this Sigma lens has 15 elements in 11 groups. The optics contain ...

Photography News: Sigma's Newest Lens in the Art Line Is Their Widest Full Frame Prime Lens Designed for High-megapixel DSLR Cameras and the First Ever 20mm f/1.4 -- Now Available for Pre-Order at B&H ...

Canon's fourth 'hybrid' f/1.4 prime lens joins the 24mm, 35mm and 50mm Versatile 20mm wide-angle perspective and fast aperture List price is £1,919.99 (US and Australia pricing plus sales start date ...

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Samyang Optics had expanded its lens line-up with the introduction of the XEEN 20mm T1.9 lens. This lens brings the range of XEEN cinema lenses to eight and is perfect for 4K video capture. As with ...

The OM System 20mm f/1.4 Pro is very much a continuation of Olympus’ legacy and it’s the 13th lens in the “M.Zuiko Pro” line. With a focal length of 20mm, the new lens will give a 40mm full-frame ...