Sigma has expanded its Art lens family with the 85mm F/1.2 DG Art, a new ultra-fast portrait prime designed for full-frame mirrorless cameras using Sony E and L-mount systems. The lens combines a bright F/1.2 aperture, a 13-blade diaphragm and a comparatively restrained 905-gram weight for a class of optics often associated with large, heavy designs.
A Fast 85mm Prime Built Around Portrait Work
The 85mm focal length remains one of the classic choices for portrait photography, and Sigma is positioning this lens squarely in that space. The headline feature is the F/1.2 maximum aperture, which gives photographers a very shallow depth of field and the ability to separate subjects strongly from the background.
Sigma has paired that aperture with a 13-blade diaphragm, a design choice intended to support smooth background rendering and a pronounced bokeh effect. While the lens is not being presented as compact, its 905-gram weight makes it notably lighter than some full-frame 85mm F/1.2 rivals on other mounts, including the Nikkor Z 85mm F/1.2 S at 1,160 grams and the Canon RF 85mm F/1.2L USM at 1,195 grams.
That weight figure is central to Sigma’s pitch. Extremely bright short telephoto primes typically demand substantial glass, but the company has managed to keep this model below the one-kilogram mark while retaining the large aperture and Art-series optical ambitions.
Optical Design Uses 17 Elements and Specialty Glass
Inside, the Sigma 85mm F/1.2 DG Art uses an optical formula made up of 17 elements in 12 groups. The construction includes three aspherical elements and two SLD glass elements, with the latter used to help suppress axial chromatic aberration.
The aspherical elements serve multiple roles in the optical system. Sigma uses them to correct spherical aberration and sagittal coma, both of which are important considerations in a bright lens intended for high-resolution mirrorless cameras. The company has also placed special aspherical elements within the focusing groups to reduce the number of elements that need to move during focusing.
That approach helps explain how Sigma is combining a large F/1.2 aperture with a comparatively manageable build. The lens is described as delivering very high image quality, though independent testing will be needed to evaluate how it performs across real shooting conditions.
Dual HLA Autofocus and Video-Oriented Tuning
Autofocus is handled by two HLA drives. Sigma says the setup is designed to take advantage of modern mirrorless camera bodies, including systems capable of tracking fast-moving subjects intelligently.
The lens is also being aimed at hybrid creators rather than still photographers alone. Sigma says the focusing group has been optimized to minimize focus breathing, the visible change in angle of view that can occur when pulling focus during video recording.
That video consideration is increasingly important for portrait and event shooters who use the same lens across stills and motion work. Sigma is not presenting the 85mm F/1.2 DG Art solely as a studio portrait tool, but as a high-speed short telephoto lens for both photography and video capture.
Controls, Sealing and Mount Support
The Sigma 85mm F/1.2 DG Art includes a dust- and moisture-resistant construction, adding a level of protection for photographers working outside controlled environments. The lens also features AFL buttons in two positions, which can be assigned to different functions through the menus of some compatible cameras.
The physical control set includes an aperture ring lock switch, and the aperture ring itself can be disabled. These additions should appeal to photographers and filmmakers who want either direct tactile aperture control or a more locked-down setup to avoid accidental changes during a shoot.
Sigma is releasing the lens for Sony E-mount and L-mount cameras. That is a notable pairing because 85mm F/1.2 prime options are limited in those ecosystems compared with some other full-frame mounts.
Part of Sigma’s Growing F/1.2 Prime Lineup
The 85mm F/1.2 DG Art is Sigma’s third fixed-focal-length F/1.2 lens. It joins the Sigma 35mm F/1.2 DG Art II and the Sigma 50mm F/1.2 DG Art, the latter of which arrived in 2024.
With the new 85mm model, Sigma now has a trio covering wide-angle, standard and medium telephoto portrait use. The 85mm is also the longest focal length Sigma has produced to date with an F/1.2 aperture.
Sigma has set the price at $1,600. The company also introduced the Sigma 20-60mm F/2.8-4 DG Contemporary alongside it, a compact standard zoom weighing 385 grams, but the 85mm F/1.2 DG Art is the more specialized release for photographers seeking maximum aperture and portrait-oriented rendering.
The Sigma 85mm F/1.2 DG Art adds a high-speed portrait option to E and L-mount systems with a strong emphasis on optical design, autofocus hardware and practical handling. Its combination of a bright aperture, 13-blade diaphragm and sub-kilogram weight makes it one of Sigma’s most ambitious Art primes yet.
