Pentax HD Pentax-D FA Macro 20320 100mm
Sigma Art 17-40mm f/1.8 DC
What Buyers Say
Pentax HD Pentax-D FA Macro 20320 100mm
This Pentax D FA Macro 100mm f/2.8 lens receives outstanding reviews for its sharpness, beautiful bokeh, and compact weather-resistant build. Users appreciate the improved autofocus with focus limiting on newer camera bodies, as well as its versatility for macro, portrait, and copy work. A few mention the autofocus is somewhat noisy, but overall it is considered an excellent upgrade over older macro lenses.
Pros
- Exceptional sharpness
- Beautiful bokeh
- Compact and lightweight
- Weather-resistant build
- Improved autofocus with focus limiting
Cons
- Autofocus can be noisy
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 HD Pentax-D FA Macro 20320 100mm | Sigma Art 17-40mm f/1.8 DC | |
|---|---|---|
| Optics | ||
| Type | macro | zoom |
| Focal Length Min | 100 mm | 17 mm |
| Focal Length Max | 100 mm | 40 mm |
| Elements | 10 | 17 |
| Groups | 8 | 11 |
| Aspherical Elements | 0 | 4★ |
| ED Elements | 1 | 4★ |
| Coating | HD coating, Pentax SP (Super Protect) coating | 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 | 0.35 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 | 130 mm★ | 280 mm |
| Max Magnification | 1:1 | 1:4.8 |
Pros & Cons
Pentax HD Pentax-D FA Macro 20320 100mm
- Strong user sentiment (92nd percentile)92nd %ile
- Strong macro (89th percentile)89th %ile
- Strong build (80th percentile)80th %ile
- 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
Sigma Art 17-40mm f/1.8 DC offers 1.4x better value for money
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 3 of 21 specs.
