Sigma Art 17-40mm f/1.8 DC
Canon EF 50mm f/1.8 STM 50mm
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
Canon EF 50mm f/1.8 STM 50mm
The Canon 50mm f/1.8 STM lens is widely praised for its exceptional value, delivering sharp images and beautiful bokeh at a very low price. Users love its lightweight, compact design and fast f/1.8 aperture for low-light and portrait photography. Common criticisms include noisy and sometimes slow autofocus, a plastic build that feels cheap, and softness at the edges when wide open. Overall, it's considered a must-have budget prime lens for Canon shooters.
Pros
- Exceptional value for money
- Sharp image quality
- Beautiful bokeh
- Lightweight and compact
- Fast f/1.8 aperture for low light
Cons
- Noisy autofocus
- Slow autofocus at times
- Plastic build feels cheap
- Soft edges at f/1.8
- No image stabilization
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC | Canon EF 50mm f/1.8 STM 50mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 50 mm |
| Focal Length Max | 40 mm | 50 mm |
| Elements | 17 | 6 |
| Groups | 11 | 5 |
| Aspherical Elements | 4★ | 1 |
| ED Elements | 4★ | 0 |
| Coating | Super Multi-Layer Coating | Super Spectra coating |
| Aperture | ||
| Max Aperture | f/1.8 | f/22 |
| Min Aperture | f/1.8 | f/1.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | 7 |
| Build | ||
| Mount | Fujifilm X | Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.54 kg | 0.16 kg★ |
| Filter Thread | 67 mm | 49 mm |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | STM★ |
| Stabilization | ✗ | ✗ |
| Stabilization Stops | — | 7 stops★ |
| Focus | ||
| Min Focus Distance | 280 mm★ | 350 mm |
| Max Magnification | 1:4.8★ | 0.21x |
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)
Canon EF 50mm f/1.8 STM 50mm
- Strong social proof (94th percentile)94th %ile
- Strong build (88th percentile)88th %ile
- Strong af (85th percentile)85th %ile
- Below average bokeh (14th percentile)14th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Pricing
Canon EF 50mm f/1.8 STM 50mm offers 2.0x better value for money
Verdict
Scores 97 overall, wins 9 of 9 usage categories and 6 of 22 specs.
