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Sigma 28-45mm f/1.8 DG DN Art

Specifications

BrandSigma
CategoryWide Angle, Normal
Prime or ZoomZoom
Focus TypeAuto
Focal length (mm)28-45
Aperture (max)1.8
Filter Size (mm)82
Weight (g)960
Length (mm)151
Diameter (mm)888
Weather Sealed
Image Stabilization
Min. focus distance (m)0.3
Max. magnification0.25
Release Year2024
Release Price (USD)1349
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Description and Reviews

Key Take-Aways:

The Sigma 28-45mm f/1.8 DG DN Art is the world’s first full-frame f/1.8 zoom lens, featuring weather sealing, internal zoom design, and a complex 18-element optical construction with multiple aspherical and low dispersion elements. Professional reviews praise its exceptional sharpness (comparable to prime lenses), excellent build quality, and smooth bokeh, while noting the significant size and weight (950g) as the primary drawback along with the limited zoom range. User sentiment on photography forums as of September 14, 2025 shows mixed reception, with videographers and event photographers appreciating the unique f/1.8 capability, though many question whether the size and weight justify the limited 28-45mm range compared to carrying separate prime lenses

From Sigma:

THE WORLD’S FIRST* F1.8 FULL-FRAME MIRRORLESS ZOOM

The Sigma 28-45mm F1.8 DG DN | Art is the world’s first full-frame zoom lens with a constant maximum aperture of F1.8, delivering sharpness and clarity comparable to that 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.

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