Sigma Contemporary 18-50mm f/2.8 DC DN
Tamron Di III 28-75mm f/2.8 Di III VXD G2 75mm
What Buyers Say
Sigma Contemporary 18-50mm f/2.8 DC DN
The Sigma 18-50mm f/2.8 DC DN Contemporary is widely praised as a compact, lightweight, and sharp standard zoom for APS-C mirrorless cameras. Users consistently highlight its excellent image quality, fast f/2.8 aperture, and affordable price as major strengths, making it a popular upgrade from kit lenses. Common criticisms include the lack of optical stabilization and a poorly designed lens hood, but overall sentiment is overwhelmingly positive.
Pros
- Excellent image sharpness
- Compact and lightweight design
- Fast f/2.8 constant aperture
- Great value for the price
- Fast and silent autofocus
Cons
- No optical image stabilization
- Poorly designed lens hood
- No weather sealing
- Plastic build quality
- Zoom ring direction opposite to Fujifilm
Tamron Di III 28-75mm f/2.8 Di III VXD G2 75mm
The Tamron 28-75mm f/2.8 lens is highly praised for its sharpness, fast autofocus, and lightweight design, making it a versatile and affordable alternative to Sony's GM lenses. Users appreciate its performance in portraits and low light, though some note the plastic build and lack of weather sealing as drawbacks. Overall, it is considered an excellent value for both enthusiasts and professionals.
Pros
- Sharp image quality
- Fast and accurate autofocus
- Lightweight design
- Versatile focal range
- Good value for money
Cons
- Plastic build quality
- No weather sealing
- Zoom ring reversed from focus ring
- Slightly long for discrete use
- Colors slightly duller than GM lenses
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Tamron Di III 28-75mm f/2.8 Di III VXD G2 75mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 18 mm | 28 mm |
| Focal Length Max | 50 mm | 75 mm |
| Elements | 13 | 17 |
| Groups | 10 | 15 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | Fluorine Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/2.8 |
| Min Aperture | f/2.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.54 kg |
| Filter Thread | 55 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | VXD linear motor★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 180 mm |
| Max Magnification | 1:2.8 | 1:2.7 |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (91st percentile)91st %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Tamron Di III 28-75mm f/2.8 Di III VXD G2 75mm
- Strong af (98th percentile)98th %ile
- Strong optical (91st percentile)91st %ile
- Strong bokeh (89th percentile)89th %ile
- Strong aperture (86th percentile)86th %ile
Pricing
Sigma Contemporary 18-50mm f/2.8 DC DN offers 1.2x better value for money
Verdict
Both products are closely matched - Sigma Contemporary 18-50mm f/2.8 DC DN wins 3 specs while Tamron Di III 28-75mm f/2.8 Di III VXD G2 75mm wins 4.
