Sigma Contemporary 18-50mm f/2.8 DC DN
Rokinon Series II 85mm f/1.4 85mm
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
Rokinon Series II 85mm f/1.4 85mm
The Rokinon 85mm f/1.4 manual lens offers exceptional value for astrophotography and portrait work, delivering sharp images and smooth bokeh at a fraction of the cost of autofocus equivalents. Users praise its center sharpness wide open and excellent performance when stopped down to f/2.8, especially for capturing stars. However, the purely manual focus and aperture can be fiddly, and build quality inconsistencies like a missing hood or accidental aperture ring bumps are noted. Overall, it's a highly recommended budget lens for those comfortable with manual operation.
Pros
- Sharp center wide open
- Smooth bokeh
- Excellent for astrophotography
- Great value for money
- Solid build quality
Cons
- Fiddly manual aperture ring
- Missing lens hood in some packages
- No autofocus
- Front-heavy with adapter on some cameras
- Accidental aperture ring bumps
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Rokinon Series II 85mm f/1.4 85mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 85 mm |
| Focal Length Max | 50 mm | 85 mm |
| Elements | 13 | 9 |
| Groups | 10 | 7 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1 | 1 |
| Coating | Super Multi-Layer Coating | Ultra Multi-Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/1.4 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.29 kg★ | 0.54 kg |
| Filter Thread | 55 mm | 72 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 1.00 m |
| Max Magnification | 1:2.8 | 1:9 |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (87th percentile)87th %ile
- Strong af (85th percentile)85th %ile
Rokinon Series II 85mm f/1.4 85mm
- Strong bokeh (97th percentile)97th %ile
- Strong aperture (97th percentile)97th %ile
- Strong social proof (76th percentile)
- Strong build (68th percentile)
- Below average af (14th percentile)14th %ile
- Below average versatility (34th percentile)
Pricing
Verdict
Scores 99 overall, wins 9 of 9 usage categories and 4 of 21 specs.
