The Sigma 24mm f/1.4 DG DN Art is a fast wide-angle prime for full-frame Sony E-mount mirrorless cameras. It uses two FLD and one SLD element plus four aspherical elements to control chromatic aberration, distortion and sagittal coma flare, which makes it a strong pick for astrophotography and nightscapes. It also suits landscape, architecture and street work, where the bright f/1.4 aperture helps in low light. Against Sony's own 24mm f/1.4 GM it is larger and heavier but built to the same Art-line standard, with a manual aperture ring and a focus mode switch.
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Owners and reviewers treat the 24mm f/1.4 DG DN Art as a sharp, well-corrected wide prime that handles coma well wide open, which is why astrophotographers favor it. The main complaints are its size and weight and the lack of stabilization.
The Sigma 24mm f/1.4 DG DN Art is a wide-angle prime lens for full-frame Sony E-mount mirrorless cameras. It belongs to Sigma's Art line and is suited to landscape, architecture, street, and astrophotography. On an APS-C sensor, it gives a 36mm equivalent focal length.
The optical design uses two FLD elements and one SLD element to correct chromatic aberrations throughout the focusing range. Four aspherical elements reduce distortion and suppress sagittal coma flare. A Super Multilayer Coating minimizes flare and ghosting, including in backlit conditions. The f/1.4 maximum aperture suits low-light work and shallow depth of field, and the rounded eleven-blade diaphragm gives out-of-focus areas an attractive quality.
An STM stepping motor provides fast, near-silent autofocus. A Manual Focus Lock switch disables the focus ring so focus does not change. The lens also has an aperture ring click switch, an aperture lock switch, and a hood with a lock button. Its weather-resistant design includes a water and dust repellent Nano Porous Coating, and the bayonet mount is made of brass.
