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Sigma 28-45mm f/1.8 DG DN Art Lens (Leica L)

BH #SI284518L • MFR #612969
Sigma 28-45mm f/1.8 DG DN Art Lens (Leica L)
Key Features
  • Full Frame | f/1.8 to f/16
  • Superfast Wide-to-Normal Zoom
  • HLA Autofocus
  • 11.9" Minimum Focus Distance
Sigma introduces the Leica L-mount 28-45mm f/1.8 DG DN Art Lens, the world's first zoom lens for full-frame mirrorless cameras with an f/1.8 aperture throughout the entire zoom range. Featuring prime-like optical performance and video-friendly design and functionality, its wide-to-normal focal range means a lighter kit bag without surrendering image quality.
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Sigma 28-45mm f/1.8 DG DN Art Overview

By B&H Photo's
The World's Brightest Full-Frame Zoom
Sigma introduces the Leica L-mount 28-45mm f/1.8 DG DN Art Lens, the world's first zoom lens for full-frame mirrorless cameras with an f/1.8 aperture throughout the entire zoom range. Featuring prime-like optical performance and video-friendly design and functionality, its wide-to-normal focal range means a lighter kit bag without surrendering image quality.
Design and Performance
The lens features a total of 18 elements in 15 groups, with three aspherical and five Special Low Dispersion elements to minimize flare and ghosting and suppress various aberrations. This results in an optical performance that meets or exceeds that of other Sigma Art lenses, including the primes. Along with its 11-blade, rounded diaphragm, the design promotes sharpness and a large, smooth bokeh when used wide open.

In addition to the f/1.8 maximum aperture, the lens also maintains an 11.9" minimum focusing distance across the entire zoom range. It achieves a maximum magnification ratio of 1:4 at its longest focal length, increasing depth of field and versatility in tight spaces.

Video Production
Designed with video creation in mind, the lens' bright f/1.8 aperture and wide-to-normal zoom range make it a versatile tool ideal for single-shooter, run-and-gun setups. An internal zoom design maintains the overall length during use, making it easy to balance on gimbals. The design also suppresses focus breathing for smooth movement across the focal range. Sigma's high-speed, high-response linear actuator autofocus remains both quiet and accurate, while manual focusing is improved with click and lock mechanisms.

The L-mount lens also supports switching between linear and non-linear focus ring settings. With a rotation angle of 90 to 720° and a constant minimum focusing distance, operators will benefit from intuitive manual focusing at any focal length.

  • Two AFL buttons
  • Focus mode switch
  • Super multilayer and nano porous coatings
  • Water- and oil-repellent coating on front element
  • Dust- and splash-resistant design
  • Durable brass bayonet mount

Sigma 28-45mm f/1.8 DG DN Art Specs

Key Specs
Focal Length
28 to 45mm
Maximum Aperture
f/1.8
Lens Mount
Leica L
Lens Format Coverage
Full-Frame
Focus Type
Autofocus
Image Stabilization
No
Filter Size
82 mm (Front)
Maximum Aperture
f/1.8
Minimum Aperture
f/16
Lens Mount
Leica L
Lens Format Coverage
Full-Frame
Angle of View
75.4° to 51.3°
Minimum Focus Distance
11.9" / 30.2 cm
Macro Reproduction Ratio
1:4
Optical Design
18 Elements in 15 Groups
Diaphragm Blades
11, Rounded
Focus Type
Autofocus
Image Stabilization
No
Filter Size
82 mm (Front)
Dimensions (ø x L)
3.5 x 6" / 87.8 x 151.4 mm
Weight
2.1 lb / 960 g
Packaging Info
Package Weight
3.61 lb
Box Dimensions (LxWxH)
11 x 6.1 x 6.1"

Sigma 28-45mm f/1.8 DG DN Art Reviews

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