Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Tamron
97 Overall Score
vs
Pentax SMC DA-L 21817 50-200mm
Pentax
64 Overall Score
Scores
Video Cinema
Budget
Macro
Professional
Travel
Portrait
Landscape
Street
Wildlife Sports
Specifications
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm | Pentax SMC DA-L 21817 50-200mm | |
|---|---|---|
| Optics | ||
| Type | zoom | telephoto |
| Focal Length Min | 17 mm | 50 mm |
| Focal Length Max | 70 mm | 200 mm |
| Elements | 16 | 11 |
| Groups | 12 | 10 |
| Aspherical Elements | 3★ | 2 |
| ED Elements | 2★ | 1 |
| Coating | Fluorine Coating | SMC |
| Aperture | ||
| Max Aperture | f/2.8 | f/4 |
| Min Aperture | f/2.8 | 4-5.6 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9★ | — |
| Build | ||
| Mount | Sony E | Pentax KAF |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.54 kg | 0.24 kg★ |
| Filter Thread | 67 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | RXD | Autofokus |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 1.10 m |
| Max Magnification | 1:4.8★ | 0.24 |
Pros & Cons
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
- Strong optical (91st percentile)91st %ile
- Strong versatility (90th percentile)90th %ile
- Strong bokeh (87th percentile)87th %ile
- Strong macro (86th percentile)86th %ile
Pentax SMC DA-L 21817 50-200mm
- Strong versatility (88th percentile)88th %ile
- Strong stabilization (82nd percentile)82nd %ile
- Strong build (82nd percentile)82nd %ile
- Strong optical (73rd percentile)
- Below average user sentiment (30th percentile)
- Below average macro (32nd percentile)
Pricing
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm0.162score per dollar
vs
Pentax SMC DA-L 21817 50-200mm0.645score per dollar
Pentax SMC DA-L 21817 50-200mm offers 4.0x better value for money
Verdict
Winner: Tamron Di III 17-70mm f/2.8 Di III-A VC RXD 70mm
Scores 97 overall, wins 9 of 9 usage categories and 7 of 21 specs.
