Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
Sigma Art 17-40mm f/1.8 DC
What Buyers Say
Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
The Pentax 50mm f/2.8 macro lens is widely praised for its sharpness, color reproduction, and value for money. Users find it excellent for macro work, general photography, and digitizing documents or artwork. Common criticisms include autofocus hunting in live view and a focus ring that rotates continuously, which some find unusual. Overall, it is considered a compact, high-quality lens that performs well above its price point.
Pros
- Exceptional sharpness
- Great color reproduction
- Excellent value for money
- Compact and lightweight
- Versatile for macro and general use
Cons
- Autofocus hunts in live view
- Focus ring rotates continuously
- Plastic barrel instead of metal
- Narrow depth of field at wide aperture
- Learning curve for close-up focusing
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
Scores
Specifications
| Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | macro | zoom |
| Focal Length Min | 50 mm | 17 mm |
| Focal Length Max | 50 mm | 40 mm |
| Elements | 8 | 17 |
| Groups | 7 | 11 |
| Aspherical Elements | 0 | 4★ |
| ED Elements | 0 | 4★ |
| Coating | smc | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/32 | f/1.8 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 8 | 11★ |
| Build | ||
| Mount | Pentax K | Fujifilm X |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✗ | ✓★ |
| Weight | 0.26 kg★ | 0.54 kg |
| Filter Thread | 49 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | Autofocus | HLA (High-response Linear Actuator) |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 150 mm★ | 280 mm |
| Max Magnification | 1:1 | 1:4.8 |
Pros & Cons
Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
- Strong macro (87th percentile)87th %ile
- Strong build (78th percentile)
- Strong social proof (75th percentile)
- Below average aperture (5th percentile)5th %ile
- Below average bokeh (6th percentile)6th %ile
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
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)
Pricing
Pentax smc P-D FA smc DFA 50mm f/2.8 Macro 50mm
Sigma Art 17-40mm f/1.8 DC
No current pricing available
Verdict
Scores 97 overall, wins 9 of 9 usage categories and 4 of 21 specs.
