Rokinon RK8518 85mm F1.8 85mm
Rokinon
82 Overall Score
vs
Sigma Contemporary 18-50mm f/2.8 DC DN
Sigma
98 Overall Score
What Buyers Say
Rokinon RK8518 85mm F1.8 85mm
No customer feedback yet
Sigma Contemporary 18-50mm f/2.8 DC DN
88 out of 100 high confidence 91 reviews
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
Image quality 25
Build quality 12
Value for money 18
Size and weight 20
Autofocus performance 10
Stabilization 8
Scores
Travel
Budget
Street
Video Cinema
Professional
Macro
Portrait
Landscape
Wildlife Sports
Specifications
| Rokinon RK8518 85mm F1.8 85mm | Sigma Contemporary 18-50mm f/2.8 DC DN | |
|---|---|---|
| Optics | ||
| Type | telephoto | zoom |
| Focal Length Min | 85 mm | 18 mm |
| Focal Length Max | 85 mm | 50 mm |
| Elements | 9 | 13 |
| Groups | 8 | 10 |
| Aspherical Elements | 3 | 3 |
| ED Elements | 1 | 1 |
| Coating | UMC | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/2.8 |
| Min Aperture | f/1.8 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9★ | 7 |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.27 kg★ | 0.29 kg |
| Filter Thread | 62 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | Linear Stepping Motor | stepping motor |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 128 mm | 121 mm★ |
| Max Magnification | 1:8.33 | 1:2.8 |
Pros & Cons
Rokinon RK8518 85mm F1.8 85mm
- Strong bokeh (94th percentile)94th %ile
- Strong aperture (94th percentile)94th %ile
- Strong macro (89th percentile)89th %ile
- Strong build (86th percentile)86th %ile
- Below average social proof (15th percentile)15th %ile
- Below average versatility (34th percentile)
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (85th percentile)85th %ile
- Strong af (85th percentile)85th %ile
- Below average stabilization (35th percentile)
Pricing
Rokinon RK8518 85mm F1.8 85mm0.199score per dollar
vs
Sigma Contemporary 18-50mm f/2.8 DC DN0.148score per dollar
Rokinon RK8518 85mm F1.8 85mm offers 1.3x better value for money
Verdict
Winner: Sigma Contemporary 18-50mm f/2.8 DC DN
Scores 98 overall, wins 6 of 9 usage categories and 1 of 21 specs.
