Sigma Contemporary 18-50mm f/2.8 DC DN
7Artisans 7.5mm f/3.5 Fisheye 8mm
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
7Artisans 7.5mm f/3.5 Fisheye 8mm
The sole review praises the lens for its build quality and wide 205-degree field of view, calling it "built like a tank." However, the extremely low rating gives a mixed impression. Q&A entries focus on compatibility with Canon APS-C and full-frame cameras, with recurring questions about fit for specific models like the T3i and T4i, as well as whether the lens shade is removable.
Pros
- Built like a tank
- 205-degree field of view
Cons
- Extremely low rating from reviewer
- Uncertain compatibility with specific Canon models
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | 7Artisans 7.5mm f/3.5 Fisheye 8mm | |
|---|---|---|
| Optics | ||
| Type | zoom | fisheye |
| Focal Length Min | 18 mm | 8 mm |
| Focal Length Max | 50 mm | 8 mm |
| Elements | 13 | 11 |
| Groups | 10 | 8 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | Multi-Layer Lens Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/3.5 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Canon EF |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg★ | 0.66 kg |
| Filter Thread | 55 mm | — |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 290 mm |
| Max Magnification | 1:2.8★ | — |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong af (87th percentile)87th %ile
- Strong build (86th percentile)86th %ile
7Artisans 7.5mm f/3.5 Fisheye 8mm
- Strong macro (74th percentile)
- Below average user sentiment (1st percentile)1st %ile
- Below average af (13th percentile)13th %ile
- Below average build (15th percentile)15th %ile
- Below average aperture (20th percentile)20th %ile
Pricing
Sigma Contemporary 18-50mm f/2.8 DC DN
7Artisans 7.5mm f/3.5 Fisheye 8mm
No current pricing available
Verdict
Scores 98 overall, wins 9 of 9 usage categories and 8 of 21 specs.
