Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
Tamron
97 Overall Score
vs
Sirui IronStar Series 75 75mm
Sirui
44 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 IronStar Series 75 75mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 75 mm |
| Focal Length Max | 70 mm | 135 mm |
| Elements | 16 | 19 |
| Groups | 12 | 16 |
| Aspherical Elements | 3★ | — |
| ED Elements | 2★ | — |
| Coating | Fluorine Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | T16 |
| Min Aperture | f/2.8 | T1.9 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 18★ |
| Build | ||
| Mount | Sony E | Interchangeable Mount with Included ARRI PL/Canon EF |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓★ | — |
| Weight | 0.54 kg★ | 1.15 kg |
| Filter Thread | 67 mm | 92 mm |
| AF & Stabilization | ||
| AF Type | RXD | — |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 800 mm |
| Max Magnification | 1:4.8★ | — |
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 IronStar Series 75 75mm
- Strong optical (79th percentile)
- Strong versatility (69th percentile)
- Below average build (16th percentile)16th %ile
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 8 of 21 specs.