Sigma Art 17-40mm f/1.8 DC
TTArtisan AF 40mm f/2 40mm
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
TTArtisan AF 40mm f/2 40mm
The TTArtisan 40mm f/2.0 pancake lens receives mixed feedback from users. While many praise its compact metal build, satisfying aperture ring, and excellent value for the price, significant issues with autofocus performance—including hunting, pulsing, and noise—are frequently mentioned. Image quality is generally good, but users note heavy vignetting and flare when shooting into strong light. Overall, it is seen as a budget-friendly option with trade-offs in AF reliability.
Pros
- Compact metal build
- Satisfying aperture ring
- Excellent value for money
- Good image quality
- Fast f/2.0 aperture for low light
Cons
- Poor autofocus performance
- Loud autofocus motor
- Heavy vignetting
- Flare when shooting into light
- Occasional misconnection with camera
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC | TTArtisan AF 40mm f/2 40mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 40 mm |
| Focal Length Max | 40 mm | 40 mm |
| Elements | 17 | 9 |
| Groups | 11 | 6 |
| Aspherical Elements | 4★ | — |
| ED Elements | 4★ | — |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/1.8 | f/16 |
| Min Aperture | f/1.8 | f/2 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | 7 |
| Build | ||
| Mount | Fujifilm X | Nikon Z |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | — |
| Weight | 0.54 kg | 0.18 kg★ |
| Filter Thread | 67 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | STM Stepping AF Motor★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 280 mm★ | 400 mm |
| Max Magnification | 1:4.8★ | — |
Pros & Cons
Sigma Art 17-40mm f/1.8 DC
- Strong user sentiment (98th percentile)98th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong optical (97th percentile)97th %ile
- Strong aperture (95th percentile)95th %ile
- Below average stabilization (34th percentile)
TTArtisan AF 40mm f/2 40mm
- Strong build (87th percentile)87th %ile
- Strong af (85th percentile)85th %ile
- Below average user sentiment (5th percentile)5th %ile
- Below average bokeh (31st percentile)
- Below average optical (32nd percentile)
- Below average versatility (33rd percentile)
Pricing
TTArtisan AF 40mm f/2 40mm offers 2.5x better value for money
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 6 of 21 specs.
