Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Tamron
97 Overall Score
vs
Pentax FA Limited 31mm f/1.8 Limited 31mm
Pentax
37 Overall Score
Scores
Video Cinema
Budget
Professional
Macro
Travel
Portrait
Landscape
Street
Wildlife Sports
Specifications
| Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | Pentax FA Limited 31mm f/1.8 Limited 31mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 31 mm |
| Focal Length Max | 70 mm | 31 mm |
| Elements | 16 | 9 |
| Groups | 12 | 7 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 2★ | 1 |
| Coating | Fluorine Coating | HD Coating, SP Coating |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | ✗ |
| Weight | 0.54 kg | 0.34 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | RXD | Autofocus |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 300 mm |
| Max Magnification | 1:4.8 | 1:6.25 |
Pros & Cons
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
- 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 FA Limited 31mm f/1.8 Limited 31mm
- Strong macro (71st percentile)
- Strong build (70th percentile)
- Below average user sentiment (16th percentile)16th %ile
- Below average aperture (20th percentile)20th %ile
- Below average bokeh (23rd percentile)
- Below average social proof (24th percentile)
Pricing
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD0.121score per dollar
vs
Pentax FA Limited 31mm f/1.8 Limited 31mm0.030score per dollar
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD offers 4.0x better value for money
Verdict
Winner: Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Scores 97 overall, wins 9 of 9 usage categories and 5 of 21 specs.
