Tamron 17-70mm F/2.8 Di III-A VC RXD vs Sigma 24-70mm F2.8 DG DN | Art 019
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Tamron 17-70mm F/2.8 Di III-A VC RXD goes wider (17mm vs 24mm).
| Spec | 17-70mm F/2.8 Di III-A VC RXD | 24-70mm F2.8 DG DN | Art 019 |
|---|---|---|
| Brand | Tamron | Sigma |
| Mount | Sony E | Sony E |
| Type | Zoom | Zoom |
| Focal length | 17-70mm (wider) | 24-70mm |
| Max aperture | f/2.8 | f/2.8 |
| Blades | n/a | 11 |
| Format | n/a | full-frame |
| Groups | n/a | 15 |
| Af motor | n/a | Stepping motor |
| Elements | n/a | 19 |
| Weight g | n/a | 830 |
| Filter mm | n/a | 82 |
| Length mm | n/a | 124.9 |
| Diameter mm | n/a | 87.8 |
| Min focus m | n/a | 0.18 |
| Max magnification | n/a | 0.34 |
Tamron 17-70mm F/2.8 Di III-A VC RXD
An APS-C standard zoom for Sony E that keeps f/2.8 across 17-70mm and adds VC stabilization. It uses an RXD focus motor.
Pros
- Constant f/2.8 with VC stabilization
- Wide 17-70mm range
- Quiet RXD focus
Cons
- APS-C only
- Larger than a kit zoom
Sigma 24-70mm F2.8 DG DN | Art 019
Sigma's f/2.8 standard zoom for full-frame mirrorless in the Art line, with a dust- and splash-proof structure. It covers 24-70mm and weighs about 830 g.
Pros
- Constant f/2.8 across 24-70mm
- Dust- and splash-proof structure
- Close focus to 0.18 m
Cons
- Heavier than an f/4 zoom
- No optical stabilization in the lens