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Product Highlights
  • f/1.8 - f/16 Aperture Range
  • Full-Frame Format
  • 18/15 Elements/Groups
  • 11 Aperture Blades
  • Dust/Splash Resistant
  • 82mm Filter Thread
  • L Mount
Lens Mount:
E Mount
L Mount
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Sigma 28-45mm f/1.8 DG DN Art Lens for L-Mount Sigma 28-45mm f/1.8 DG DN Art Lens f...
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Art | 28-45mm F1.8 DG DN

The world’s first full-frame zoom lens with a constant maximum aperture of F1.8, delivering the sharpness and clarity of a prime lens.

Already the pioneer of unique, large-aperture zoom lenses including the SIGMA 18-35mm F1.8 DC HSM | Art and the SIGMA 24-35mm F2 DG HSM | Art, SIGMA introduces another fast, portable and versatile tool to its Art lineup. 

In addition to its unprecedented brightness, the SIGMA 28-45mm F1.8 DG DN | Art delivers sharpness and clarity comparable to that of a prime lens throughout its entire zoom range. Also equipped with fast and precise AF and superior operability, this innovative optic turns a new page in the history of zoom lenses and their creative possibilities. It is a lens that will inspire full-frame film-makers, while bringing unparalleled versatility to stills photographers.

The world’s first full-frame, F1.8 maximum aperture zoom lens

SIGMA has successfully developed the world’s first full-frame zoom lens with a maximum aperture of F1.8. The SIGMA 28-45mm F1.8 DG DN | Art incorporates an inner zoom mechanism, a minimum focusing distance of 30cm across the entire zoom range, and a filter size of 82mm. Despite its advanced feature-set, the lens weighs less than 1kg, making it a portable and versatile option for either hand-held shooting or a gimbal setup. Once a privilege reserved only for prime lenses, the maximum F1.8 aperture allows full-frame camera users to expose hand-held in low light and produce beautiful bokeh, while enjoying the flexibility of a zoom. This unique optical achievement has been created through SIGMA’s accumulated optical design experience and advanced production technology at the company’s sole production base in Aizu, Japan. Employing an inner zoom mechanism, the overall length of the lens remains constant when the focal length or focus distance changes. This means the lens is easy to use when shooting hand-held, highly stable when mounted on a tripod or gimbal, and more resistant to dust and water contamination. The minimum focusing distance is a constant 30cm across the entire zoom range, with a maximum magnification ratio of 1:4 at the telephoto end, providing excellent close-up shooting capabilities. As well as offering precise focus in confined spaces, the lens can therefore be used close to a subject without affecting sharpness when using the zoom. By rights, such a fast zoom should be big and heavy, but while the lens’s rigidity and durability protect its sophisticated optical design, this is achieved at a weight of less than 1kg.

Excellent optical performance comparable to that of a prime lens

With each optical aberration meticulously corrected throughout the zoom range, the SIGMA 28-45mm F1.8 DG DN | Art rivals prime lenses for clarity and definition. Thanks to its advanced coatings, the lens produces clear images, even in backlit environments, while focus breathing is thoroughly suppressed, bringing expressive power to film-makers and photographers.

High-speed AF speed and innovative features

The SIGMA 28-45mm F1.8 DG DN | Art delivers a range of professional features as impressive as its outstanding optical performance. With high-speed and adaptable AF, a durable weather-resistant structure, a de-clickable aperture ring, smooth manual focusing and on-barrel AFL buttons, all features combine to create a versatile photographic tool capable of responding to any situation

What's Included

28-45mm f/1.8 DG DN Art Lens
Lens Hood
Front Lens Cap
Rear Lens Cap


Product Specifications

Art 28-45mm F1.8 DG DN

Focal Length 28-45 mm
Minimum Aperture F16
Lens Construction 18 elements in 15 groups
Angle of View (35mm) 75.4° - 51.3°
Number of Diaphragm Blades 11 (Rounded diaphragm)
Minimum Focusing Distance 30 cm (11.9")
Maximum Magnification 1:4
Filter Size 82 mm
Dimensions Diameter: 87.8 mm × 151.4 mm (3.5 × 6")
Weight 960 g (33.9 oz.)
Mounts (AF) L-mount / Sony E-mount

Questions & Answers

Sigma 28-45mm f/1.8 DG DN Art Lens for L-Mount

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