Sigma 18-50mm F2.8 DC DN | Contemporary 021 vs 28-45mm f/1.8 DG DN Art
Both are Sony E zoom lenses. Here is what actually differs.
Pick the 18-50mm F2.8 DC DN | Contemporary 021 if
- You want the lighter lens to carry: 660 g lighter (290 g vs 950 g)
- You want a wider view: 18mm vs 28mm at the wide end
- You need more reach: 50mm vs 45mm at the long end
- You shoot close-ups: it focuses down to 0.12 m vs 0.3 m
- You want bigger close-ups: 0.36× vs 0.25× maximum magnification
- Our notes say it suits: Everyday APS-C shooting, vlogging and travel, low-light snapshots
Pick the 28-45mm f/1.8 DG DN Art if
- You need 1⅓ stops more light for low light or background blur (f/1.8 vs f/2.8)
- You shoot full frame: the 18-50mm F2.8 DC DN | Contemporary 021 is made for APS-C
- You care about the shape of out-of-focus highlights: 11 aperture blades vs 7
- You prefer a newer design: released 2024 vs 2021
Spec differences
14 differences| 18-50mm F2.8 DC DN | Contemporary 021 | 28-45mm f/1.8 DG DN Art | |
|---|---|---|
| Format |
APS-C
|
Full frame
|
| Focal length |
18-50mm
|
28-45mm
|
| Max aperture |
f/2.8
|
f/1.8
1⅓ stops faster
|
| Weight |
290 g
lighter
|
950 g
|
| Length |
76.5 mm
shorter
|
153.4 mm
|
| Diameter |
61.6 mm
slimmer
|
87.8 mm
|
| Filter thread |
55 mm
|
82 mm
|
| Min focus distance |
0.12 m
closer
|
0.3 m
|
| Max magnification |
0.36×
larger
|
0.25×
|
| Aperture blades |
7
|
11
more blades
|
| Optical design |
13 elements / 10 groups
|
18 elements / 15 groups
|
| Autofocus motor |
Stepping motor
|
not listed
|
| Weather sealing |
not listed
|
Yes
|
| Released |
2021
|
2024
|
4 identical specs hidden: brand, mount, type, image stabilization. Show all
- Brand
- Sigma both
- Mount
- Sony E both
- Type
- Zoom both
- Image stabilization
- No both
Our notes
Sigma 18-50mm F2.8 DC DN | Contemporary 021
A compact f/2.8 standard zoom for APS-C E-mount cameras, weighing about 290 g. It takes 55mm filters and offers a close focus distance of 0.121 m.
Pros
- Constant f/2.8
- Very light at 290 g
- Close focus 0.121 m
- Stepping motor autofocus
Cons
- APS-C only
- No stabilization in the lens
- Less range than a kit zoom
Our notes
Sigma 28-45mm f/1.8 DG DN Art
More comparisons
Sony FE 24-70mm f/2.8 GM vs Sigma 18-50mm F2.8 DC DN | Contemporary 021
more reach (70mm) vs 596 g lighter
Tamron 35-150mm F2-2.8 Di III VXD vs Sigma 28-45mm f/1.8 DG DN Art
more reach (150mm) vs ⅓ stop faster
Sony FE 12-24mm F2.8 GM vs Sigma 18-50mm F2.8 DC DN | Contemporary 021
wider (12mm) vs 557 g lighter
Sony FE 24-70mm f/2.8 GM vs Sigma 28-45mm f/1.8 DG DN Art
64 g lighter vs 1⅓ stops faster
Tamron 11-20mm F/2.8 Di III-A RXD vs Sigma 18-50mm F2.8 DC DN | Contemporary 021
wider (11mm) vs 45 g lighter

Sony FE 16-35mm F2.8 GM vs Sigma 28-45mm f/1.8 DG DN Art
270 g lighter vs 1⅓ stops faster