Sigma 28-45mm F1.8 DG DN Art Lens
The Sigma 28-45mm f/1.8 DG DN is a 28–45mm f/1.8 lens designed for Sony E, L-Mount mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Sigma 28-45mm F1.8 DG DN Art Lens
Get notified when one lists.
We'll text or email you the moment a Sigma 28-45mm f/1.8 DG DN is listed on GearFocus.
Have a Sigma 28-45mm f/1.8 DG DN sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Lens Overview — Sigma 28-45mm f/1.8 DG DN
Key Features — Sigma 28-45mm f/1.8 DG DN
Constant f/1.8 Maximum Aperture: Maintains f/1.8 across the entire 28–45mm zoom range, which is exceptionally rare for a zoom lens and allows consistent low-light performance and depth-of-field control at any focal length.
28–45mm Focal Length Range: Covers wide-angle through short standard focal lengths, making it versatile for street photography, environmental portraits, and everyday shooting on a single lens.
Full-Frame Coverage: Designed to cover a full-frame image circle with no cropping or vignetting on full-frame mirrorless bodies.
Native Mirrorless Design: Built from the ground up as a DG DN lens for mirrorless systems, allowing optical optimization for the shorter flange distances of Sony E and L-Mount platforms.
Sony E & L-Mount Availability: Available in both Sony E and L-Mount versions, covering full-frame mirrorless systems from Sony, Sigma, Panasonic, and Leica.
Autofocus Support: Includes autofocus with manual override, supporting fast subject acquisition alongside precise manual control when needed.
Lens Specifications — Sigma 28-45mm f/1.8 DG DN
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Landscape, Travel, Video / Cinematography |
| Lens Type | Zoom |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 28–45mm |
| Maximum Aperture | f/1.8 |
| Camera System | Mirrorless |
| Lens Mount | Sony E, L-Mount |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
Description — Sigma 28-45mm f/1.8 DG DN
The Sigma 28-45mm f/1.8 DG DN Art is a full-frame, mirrorless-native zoom lens offering a 28mm to 45mm focal length range with a remarkable constant maximum aperture of f/1.8. That constant f/1.8 across the entire zoom range is a standout specification — zoom lenses at this aperture speed are rare, and it gives photographers meaningful flexibility when shooting in challenging light or when a shallower depth of field is desired. Built as a DG DN design, the lens is engineered from the ground up for mirrorless cameras rather than being a DSLR-derived adaptation.
It is offered in both Sony E and L-Mount configurations, covering a broad range of full-frame mirrorless platforms. Focus operation supports both autofocus and manual focus, giving shooters flexibility in how they engage with the lens. It is worth noting that image stabilization is not included, so stabilization-dependent workflows will require a camera body with IBIS capability.
The 28–45mm range covers wide-to-standard field of view territory, making it a practical choice for documentary, portrait, and general-purpose photography.
Pros — Sigma 28-45mm f/1.8 DG DN
- ✓Constant f/1.8 maximum aperture across the full 28–45mm zoom range — exceptionally fast for a zoom lens
- ✓Full-frame coverage (lensFormat: Full Frame) ensures no crop or vignetting on full-frame mirrorless bodies
- ✓Native mirrorless design (cameraSystem: Mirrorless) optimized for Sony E and L-Mount systems
Cons — Sigma 28-45mm f/1.8 DG DN
- ✗No image stabilization (imageStabilization: None) — users must rely on in-body stabilization if needed
- ✗Filter thread size is not specified, making it difficult to plan for filter use without additional research
- ✗Weight value is not available in current product data, making direct handling comparisons difficult
Videos — Sigma 28-45mm f/1.8 DG DN
Sigma 28-45mm f/1.8 Lens Review: Good. Heavy. Interesting. — Gerald Undone