Sigma Art 17-40mm f/1.8 DC
Brightin Star 12mm f/2 III 12mm
What Buyers Say
Sigma Art 17-40mm f/1.8 DC
The Sigma 17-40mm f/1.8 DC DN Art lens is overwhelmingly praised for its exceptional image quality, fast constant aperture, and compact internal zoom design. Users highlight its sharpness, lightweight build, and excellent autofocus performance, especially on crop-sensor mirrorless cameras like the Canon R7 and Fujifilm bodies. A few questions about compatibility with specific cameras and features like weather sealing and aperture ring are noted, but the overall sentiment is extremely positive.
Pros
- Exceptional image quality
- Fast constant f/1.8 aperture
- Compact internal zoom design
- Lightweight build
- Sharp and bright photos
Cons
- No weather sealing mentioned
- No manual aperture ring on some mounts
- Compatibility questions with full-frame cameras
- Expensive for some buyers
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 Art 17-40mm f/1.8 DC | Brightin Star 12mm f/2 III 12mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 12 mm |
| Focal Length Max | 40 mm | 12 mm |
| Elements | 17 | 12 |
| Groups | 11 | 9 |
| Aspherical Elements | 4★ | 2 |
| ED Elements | 4★ | 2 |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/1.8 | f/22 |
| Min Aperture | f/1.8 | f/2 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 11★ | 10 |
| Build | ||
| Mount | Fujifilm X | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.54 kg | 0.27 kg★ |
| Filter Thread | 67 mm | 62 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | Manual Focus |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm | 180 mm★ |
| Max Magnification | 1:4.8★ | — |
Pros & Cons
Sigma Art 17-40mm f/1.8 DC
- Strong user sentiment (99th percentile)99th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong optical (97th percentile)97th %ile
- Strong aperture (95th percentile)95th %ile
- Below average stabilization (34th percentile)
Brightin Star 12mm f/2 III 12mm
- Strong user sentiment (93rd percentile)93rd %ile
- Strong macro (84th percentile)84th %ile
- Strong social proof (81st percentile)81st %ile
- Strong build (77th percentile)
- Below average af (15th percentile)15th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 6 of 21 specs.