Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD
Yongnuo YN23mm F1.4S DA DSM 23mm
What Buyers Say
Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD
The Tamron 17-70mm f/2.8 Di III-A VC RXD lens is widely praised for its sharpness, versatile zoom range, constant aperture, and effective stabilization, making it an excellent all-around lens for APS-C cameras. Users appreciate its solid build quality and value for money, though many note it is noticeably heavier and larger than typical kit lenses, which can feel unbalanced on smaller camera bodies. A few reviewers mention minor issues like chromatic aberration at the longer end and noise from the aperture blades at certain settings, but overall sentiment is very positive.
Pros
- sharp image quality across zoom range
- constant f/2.8 aperture
- effective image stabilization
- fast and quiet autofocus
- versatile 17-70mm focal range
Cons
- heavy and large for APS-C body
- chromatic aberration at 50-70mm
- aperture blade noise above f/5.6
- short zoom throw initially stiff
- no aperture ring on Fuji version
Yongnuo YN23mm F1.4S DA DSM 23mm
The Sony FE 70-200mm f/2.8 GM OSS II lens receives overwhelmingly positive feedback for its sharpness, fast autofocus, and excellent build quality. Users highlight its performance in low light and video work, with many noting it as a significant upgrade. A few Q&A entries address concerns about internal movement when off, which is confirmed as normal stabilizer behavior.
Pros
- Sharp image quality
- Fast and quiet autofocus
- Excellent build quality
- Great low-light performance
- Internal zoom mechanism
Cons
- Internal movement when off (normal but concerning)
- Heavier than similar lenses
- Not parfocal
- Focus-by-wire system
Scores
Specifications
| Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD | Yongnuo YN23mm F1.4S DA DSM 23mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 17 mm | 23 mm |
| Focal Length Max | 70 mm | 23 mm |
| Elements | 16 | 11 |
| Groups | 12 | 9 |
| Aspherical Elements | 3★ | — |
| ED Elements | 2 | 3★ |
| Coating | Fluorine Coating | nano-multilayer coating |
| Aperture | ||
| Max Aperture | f/22 | f/1.4 |
| Min Aperture | f/2.8 | f/1.4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Nikon Z | Sony E |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.54 kg | 0.37 kg★ |
| Filter Thread | 67 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | RXD Stepping AF Motor | DSM digital stepping motor★ |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 70 mm | 23 mm★ |
| Max Magnification | 1:4.8★ | 0.1x |
Pros & Cons
Tamron Di III-A 17-70mm F/2.8 Di III-A VC RXD
- Strong macro (94th percentile)94th %ile
- Strong optical (90th percentile)90th %ile
- Strong versatility (90th percentile)90th %ile
- Strong af (85th percentile)85th %ile
- Below average social proof (17th percentile)17th %ile
- Below average aperture (22nd percentile)
- Below average bokeh (25th percentile)
Yongnuo YN23mm F1.4S DA DSM 23mm
- Strong social proof (99th percentile)99th %ile
- Strong aperture (97th percentile)97th %ile
- Strong bokeh (97th percentile)97th %ile
- Strong user sentiment (91st percentile)91st %ile
- Below average versatility (34th percentile)
Verdict
Scores 94 overall, wins 7 of 9 usage categories and 4 of 21 specs.