Viltrox Air AF 9mm f/2.8 9mm
Brightin Star AF 50mm f/1.4 50mm
What Buyers Say
Viltrox Air AF 9mm f/2.8 9mm
The Viltrox 23mm f/1.4 lens for Fuji X mount receives overwhelmingly positive feedback for its sharpness, fast and quiet autofocus, and excellent build quality at a budget price. A few users note the lack of an aperture ring and some corner softness, but most consider it a great value compared to the Fujifilm equivalent. One reviewer received a wrong hood, and another found it heavy and less sharp than the Viltrox 35mm Air lens.
Pros
- Excellent sharpness
- Fast and quiet autofocus
- Great build quality for the price
- Good value compared to Fujifilm
- Nice color rendering
Cons
- No aperture ring
- Slight corner softness
- Heavy for some users
- Received wrong hood
- Less sharp than Viltrox 35mm Air
Brightin Star AF 50mm f/1.4 50mm
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 from previous lenses. Some 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 professional-grade zoom that delivers outstanding results.
Pros
- Exceptional sharpness
- Fast and snappy autofocus
- Great low-light performance
- Excellent for video
- Internal zoom mechanism
Cons
- Internal movement when off (normal but concerning)
- Not parfocal
- Focus-by-wire system (not mechanical)
- High price point
Scores
Specifications
| Viltrox Air AF 9mm f/2.8 9mm | Brightin Star AF 50mm f/1.4 50mm | |
|---|---|---|
| Optics | ||
| Type | wide-angle | prime |
| Focal Length Min | 9 mm | 50 mm |
| Focal Length Max | 9 mm | 50 mm |
| Elements | 13 | 6 |
| Groups | 11 | 5 |
| Aspherical Elements | 2★ | — |
| ED Elements | 3★ | 1 |
| Coating | HD multi-layer nano-coating | High-Transparency Coating |
| Aperture | ||
| Max Aperture | f/9 | f/16 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | — | ✗ |
| Weight | 0.13 kg★ | 0.56 kg |
| Filter Thread | 49 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | STM★ | manual focus only |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 130 mm★ | 420 mm |
Pros & Cons
Viltrox Air AF 9mm f/2.8 9mm
- Strong build (94th percentile)94th %ile
- Strong macro (91st percentile)91st %ile
- Strong social proof (90th percentile)90th %ile
- Strong af (87th percentile)87th %ile
- Below average versatility (34th percentile)
Brightin Star AF 50mm f/1.4 50mm
- Strong user sentiment (91st percentile)91st %ile
- Strong social proof (85th percentile)85th %ile
- Below average af (13th percentile)13th %ile
- Below average versatility (34th percentile)
Verdict
Scores 84 overall, wins 9 of 9 usage categories and 7 of 20 specs.