Sigma Art 17-40mm f/1.8 DC
Pentax DA* 21750 60-250mm
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
Pentax DA* 21750 60-250mm
The Pentax DA* 60-250mm f/4 lens is highly regarded for its excellent sharpness across the zoom range and solid build quality with weather sealing. Users praise its versatility, silent autofocus, and good value for the price, though some note concerns about weight, occasional focus or SDM reliability issues, and a tendency for the lens to creep. Overall, it is considered a superb telephoto zoom for Pentax APS-C cameras.
Pros
- Excellent sharpness across zoom range
- Weather sealed construction
- Silent and fast autofocus (SDM)
- Versatile 60-250mm focal length
- Good value for the price
Cons
- Heavy weight (over 1 kg)
- No zoom lock (barrel may creep)
- SDM reliability concerns
- Occasional softness at certain focal lengths
- Lens cap lacks tether
Scores
Specifications
| Sigma Art 17-40mm f/1.8 DC | Pentax DA* 21750 60-250mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 17 mm | 60 mm |
| Focal Length Max | 40 mm | 250 mm |
| Elements | 17 | — |
| Groups | 11 | — |
| Aspherical Elements | 4★ | — |
| ED Elements | 4★ | 1 |
| Coating | Super Multi-Layer Coating | Super Protect (SP) coating, smc |
| Aperture | ||
| Max Aperture | f/1.8 | f/4 |
| Min Aperture | f/1.8 | f/4 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 11★ | — |
| Build | ||
| Mount | Fujifilm X | Pentax KAF2 |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 1.04 kg |
| Filter Thread | 67 mm | — |
| AF & Stabilization | ||
| AF Type | HLA (High-response Linear Actuator) | SDM |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 280 mm | 250 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)
Pentax DA* 21750 60-250mm
- Strong versatility (90th percentile)90th %ile
- Strong stabilization (79th percentile)
- Strong macro (75th percentile)
- Strong user sentiment (75th percentile)
- Below average build (13th percentile)13th %ile
Pricing
Sigma Art 17-40mm f/1.8 DC
Pentax DA* 21750 60-250mm
No current pricing available
Verdict
Scores 96 overall, wins 9 of 9 usage categories and 5 of 21 specs.
