Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Tamron
97 Overall Score
vs
Sirui Astra Series AST-50-ZN 50mm
Sirui
41 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 | Sirui Astra Series AST-50-ZN 50mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 50 mm |
| Focal Length Max | 70 mm | 50 mm |
| Elements | 16 | 18 |
| Groups | 12 | 14 |
| Aspherical Elements | 3★ | — |
| ED Elements | 2★ | — |
| Coating | Fluorine Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/22 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 11★ |
| Build | ||
| Mount | Sony E | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg★ | 0.64 kg |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | RXD | Selectable Manual and Autofocus |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 500 mm |
| Max Magnification | 1:4.8 | 1:7.2 |
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
Sirui Astra Series AST-50-ZN 50mm
- Strong social proof (77th percentile)
- Strong optical (74th percentile)
- Below average af (13th percentile)13th %ile
- Below average aperture (20th percentile)20th %ile
- Below average bokeh (33rd percentile)
- Below average versatility (34th percentile)
Pricing
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Sirui Astra Series AST-50-ZN 50mm
No current pricing available
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 6 of 21 specs.
