The Sigma 28mm f1.4 DG HSM Art is a fast wide-angle prime for full-frame Sony E-mount cameras. Its f/1.4 aperture, two FLD and three SLD elements and three aspherical elements keep distortion and coma low, which matters for night skies and architecture. The Hyper Sonic Motor gives quick autofocus, and the dust- and splash-proof barrel with a water- and oil-repellent front coating handles rough weather. It is large and heavy for a 28mm, so it suits photographers who value speed and optics over a light bag; the Sony E version is a DSLR-style design adapted to mirrorless, so it is bigger than native E-mount primes.
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Owners rate it very highly, with a perfect average across the ratings given. They praise its sharpness wide open, low coma for astrophotography and solid weather sealing.
The Sigma 28mm f/1.4 DG HSM Art is a full-frame wide-angle lens for Sony E mount. Its aperture range is f/1.4 to f/16, and it has a rounded 9-blade diaphragm.
The optical design uses two FLD elements, three SLD elements and three aspherical elements, with Super Multi-Layer Coating. It is designed to correct magnification chromatic aberration and sagittal coma flare, to minimize distortion, and to reduce flare and ghosting.
A Hyper Sonic Motor with an updated algorithm drives autofocus, and manual override allows two full-time manual focus modes. The lens has a dust- and splash-proof structure. The front element has a water- and oil-repellent protective coating. It suits street photography, landscapes and night skies.
