NEW

28-45mm F1.8 DG DN | A

As low as $1,349
SKU: #
612

Pre-Order from authorized SIGMA dealers below

 

  • World's first* full-frame, F1.8 maximum aperture zoom lens
  • Optical performance comparable to that of a prime lens
  • Inner zoom mechanism
  • Minimum focusing distance of 30cm
  • Dust and splash-resistant structure
  • HLA (High-response Linear Actuator) focus motor
  • Water and oil repellent front coating
  • Designed to minimize focus breathing
  • Designed to minimize flare and ghosting
  • Equipped with two AFL buttons
  • Aperture ring with de-click function
  • Compatible with Lens Aberration Correction**

 

*as of June 2024 by SIGMA

**Function available on supported cameras only. Available corrections / functionality may vary depending on camera model.

Explore the 28-45mm F1.8 DG DN | A

28-45mm F1.8 DG DN Art

For Sony & L-Mount shooters

SIGMA's DG DN lenses are made exclusively for mirrorless cameras, including Sony E-mount and L-Mount (SIGMA, Panasonic, Leica, and others) systems. These full-frame lenses are designed to take advantage of the benefits offered by mirrorless camera bodies, including more compact dimensions, in-camera corrections, and a variety of improved technologies.

ALL DG DN LENSES

Make sure you get your 4-Year Warranty

All SIGMA lenses come with a 4-Year Warranty in the US, but only if you buy from SIGMA America directly or a SIGMA Authorized Dealer. Grey market importers undercut legitimate retailers, deceive well-intentioned customers, and sell products that are ultimately not eligible for warranty service. Make sure you are buying from a trusted source so your lens is covered!

LEARN MORE

Lens Specifications
Lens Construction
18 elements in 15 groups
(5 SLD, 3 aspherical)
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Lens Construction
Angle of View
75.4° (W) - 51.3° (T)
Number of Diaphragm Blades
11 (rounded)
Maximum Aperture
F1.8
Minimum Aperture
F16
Minimum Focusing Distance
30cm / 11.9 in.
Filter Size
82mm
Maximum Magnification
1:4 at 45mm
Weight
L-Mount: 960g / 33.9 oz.
Sony E-mount: 950g / 33.5 oz.
Dimensions (Diameter x Length)
L-Mount: 87.8 x 151.4mm / 3.5 x 6.0 in.
Sony E: 87.8 x 153.4mm / 3.5 x 6.0 in.
What's in the BoxCASE, LENS HOOD LH878-06, FRONT CAP LCF-82 III, REAR CAP LCR II
Firmware information

Learn more about the latest firmware.

View Firmware
Lens Compatibility Chart

Check compatibility of lenses with your camera make and model.

View Chart
Geometrical MTF Chart
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10 lines per millimeter measure the lens's contrast ability (red lines). Repeating fine parallel lines spaced at 30 lines per millimeter measure the lens's sharpness ability (green lines) when the aperture is wide open.

Wide End

Geometrical MTF Chart

Tele End

Diffraction MTF Chart
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Diffraction MTF takes diffracted light at every aperture into account which is very close to actual image data. Geometrical MTF does not consider the diffraction quality of light, yet it tends to show higher values than actual image.

Wide End

Diffraction MTF Chart

Tele End

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