Sigma Contemporary 18-50mm f/2.8 DC DN
Brightin Star 12mm f/2 III 12mm
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
Brightin Star 12mm f/2 III 12mm
The Sony FE 70-200mm f/2.8 GM OSS II lens receives overwhelmingly positive feedback for its exceptional sharpness, fast autofocus, and low-light performance. Users highlight its suitability for both photography and video, with many noting a significant upgrade over previous lenses. A few Q&A entries address concerns about internal movement when the lens is off, which is confirmed as normal stabilizer behavior. Overall, it is praised as a top-tier professional zoom lens.
Pros
- Exceptional sharpness
- Fast and snappy autofocus
- Excellent low-light performance
- Great for video with steady stabilization
- Internal zoom mechanism
Cons
- Internal movement when off may cause concern
- Focus-by-wire system (not mechanical)
- High price point
- Tripod must attach to lens collar, not camera
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | Brightin Star 12mm f/2 III 12mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 18 mm | 12 mm |
| Focal Length Max | 50 mm | 12 mm |
| Elements | 13 | 12 |
| Groups | 10 | 9 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 1 | 2★ |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/2 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 10★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.29 kg | 0.27 kg★ |
| Filter Thread | 55 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | stepping motor★ | Manual Focus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 180 mm |
| Max Magnification | 1:2.8★ | — |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (90th percentile)90th %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Brightin Star 12mm f/2 III 12mm
- Strong user sentiment (91st percentile)91st %ile
- Strong macro (85th percentile)85th %ile
- Strong social proof (82nd percentile)82nd %ile
- Strong build (77th percentile)
- Below average af (15th percentile)15th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (33rd percentile)
- Below average versatility (34th percentile)
Pricing
Brightin Star 12mm f/2 III 12mm offers 2.2x better value for money
Verdict
Scores 98 overall, wins 9 of 9 usage categories and 6 of 21 specs.
