Sigma 28-45mm F1.8 DG DN Art
Sigma · 28–45 mm · f/1.8 · Art
Score Breakdown
Scores combine our editorial testing with published lab data.
78
SCORE /100
What We Like
+World's first full-frame f/1.8 constant aperture zoom lens
+Excellent optical performance rivaling prime lenses throughout zoom range
+Silent autofocus with HLA motor ideal for video
+Internal zoom and suppressed focus breathing perfect for gimbals
+Under 1kg weight despite advanced optical specifications
+Minimal chromatic aberration and flare with advanced coatings
Worth Knowing
−Larger and heavier than typical 28-45mm zooms (comparable to 24-70mm f/2.8)
−Limited focal length range compared to standard 24-70mm alternatives
−No built-in optical image stabilization
−High price point at $1,349 USD
General | |
|---|---|
About This LensThe 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. It is a beautifully made, feature rich lens with a high end focus system, incredibly sharp, and has really gorgeous bokeh and rendering. Its focal length range is more limited than the popular 24-70mm range favored by many photographers, and its maximum aperture is 1.3 stops larger than an f/2.8 lens and 2.3 stops larger than an f/4 lens. Measuring 87.8mm in diameter and 153.4mm in length for the Sony E-mount version, it is longer than both the Sigma 24-70mm F2.8 and weighs 950g, which is more than the Sony FE 24-70mm F2.8 GM II. | |
| Brand | Sigma |
| Release Year | 2024 |
Production Status ⓘCurrent status of lens manufacturing (e.g., in production, discontinued). |  In Production |
Pro Branding ⓘSpecific branding codes used for professional-tier lenses. | Art |
Lens Mount ⓘThe lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras. | Leica L |
System ⓘIndicates which camera system the lens is designed to attach to. | Leica L |
Maximum Format ⓘLargest sensor size compatible with the lens. |  Full Frame |
Physical92/100 | |
| Lens Weight | 960 g |
Lens Diameter ⓘWidth of the lens at its widest point | 87.8 mm |
Lens Length ⓘHow long the lens is from front to back. | 151.4 mm |
Front Filter Compatible ⓘSome lenses are compatible with front filters, some are compatible with back filters and some are compatible with both. Front filters are usually more convenient to add and remove. |  Yes |
Front Filter Size ⓘDiameter of attachable filters. | 82 mm |
Optics88/100 | |
Focal Range ⓘShortest to longest focal length of the lens (zoom range start - end ) | 28–45 mm |
Aperture Range ⓘLargest aperture at the lens's shortest focal length to longest focal length (aperture range start - end) | 1.8 |
| Focal Length Angle of View | 75.4°–51.3° |
Flange Focal Distance ⓘDistance from lens mount to sensor. | 20 mm |
Diaphragm Type ⓘStructure and design of the aperture |  Automatic |
Blades ⓘNumber of diaphragm blades in aperture | 11020 |
Zoom Lens ⓘZoom allows you to vary the focal length, change between long shots and close-ups |  Yes |
Zoom Mechanism ⓘSystem enabling zoom function |  Manual |
Zoom Ring ⓘIf zooming is adjusted using a zoom ring |  Yes |
Zoom Type ⓘThe design or approach to zooming |  Rotary |
Closest Focusing Distance ⓘMinimum distance for a subject to be in focus. | 30 cm01500 |
Maximum Magnification ⓘLargest size a subject can be reproduced | 0.25x |
| Autofocus Mode |  Yes |
| Manual Mode |  Yes |
| Manual Focusing Ring |  Yes |
Features52/100 | |
Weather Sealing ⓘWeather sealing capabilities will give you more confidence when shooting in unfavourable conditions. |  Yes |
Fluorine Coating ⓘCoating to repel water and oil from lens elements. | No |
| Built In Lens Hood | No |
| Lens Hood Type |  Petal |
Zoom Lock ⓘZoom lock allows the zoom ring to be locked at the desired focal length | No |
Teleconverter ⓘA teleconverter (extender) is an extra piece of equipment that fits between the lens and the camera body to enhance magnification | No |
| Image Stabilization | No |
Construction54/100 | |
Elements ⓘLens elements refer to individual pieces of glass within the lens. | 18 |
| Groups | 15 |
Aspherical Elements ⓘThe number of aspherical lens elements which can help correct aberrations such as spherical aberration. | 3 |
Bi Aspherical Elements ⓘElements with two non-spherical surfaces | 0 |
Low Dispersion ⓘElements that reduce chromatic aberration | 5 |
Super Low Dispersion ⓘAdvanced elements further reducing chromatic aberration | 0 |
CA Reduction ⓘBuilt-in features to reduce chromatic aberration | 0 |
Internal Focusing ⓘInternal Focusing means that the lens does not change in size during focusing, and the front element does not rotate. |  Yes |