TTArtisan AF 40mm f/2 40mm
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
What Buyers Say
TTArtisan AF 40mm f/2 40mm
The TTArtisan 40mm f/2.0 pancake lens receives mixed feedback from users. While many praise its compact metal build, satisfying aperture ring, and excellent value for the price, significant issues with autofocus performance—including hunting, pulsing, and noise—are frequently mentioned. Image quality is generally good, but users note heavy vignetting and flare when shooting into strong light. Overall, it is seen as a budget-friendly option with trade-offs in AF reliability.
Pros
- Compact metal build
- Satisfying aperture ring
- Excellent value for money
- Good image quality
- Fast f/2.0 aperture for low light
Cons
- Poor autofocus performance
- Loud autofocus motor
- Heavy vignetting
- Flare when shooting into light
- Occasional misconnection with camera
Tamron Di III 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
Scores
Specifications
| TTArtisan AF 40mm f/2 40mm | Tamron Di III 17-70mm f/2.8 Di III-A VC RXD | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 40 mm | 17 mm |
| Focal Length Max | 40 mm | 70 mm |
| Elements | 9 | 16 |
| Groups | 6 | 12 |
| Aspherical Elements | — | 3★ |
| ED Elements | — | 2★ |
| Coating | — | Fluorine Coating |
| Aperture | ||
| Max Aperture | f/16 | f/2.8 |
| Min Aperture | f/2 | f/2.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Nikon Z | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | — | ✓★ |
| Weight | 0.18 kg★ | 0.54 kg |
| Filter Thread | 52 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | STM Stepping AF Motor★ | RXD |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 400 mm | 190 mm★ |
| Max Magnification | — | 1:4.8★ |
Pros & Cons
TTArtisan AF 40mm f/2 40mm
- Strong build (87th percentile)87th %ile
- Strong af (86th percentile)86th %ile
- Below average user sentiment (5th percentile)5th %ile
- Below average bokeh (31st percentile)
- Below average versatility (34th percentile)
Tamron Di III 17-70mm f/2.8 Di III-A VC RXD
- Strong optical (90th percentile)90th %ile
- Strong versatility (90th percentile)90th %ile
- Strong bokeh (89th percentile)89th %ile
- Strong aperture (86th percentile)86th %ile
Verdict
Scores 97 overall, wins 9 of 9 usage categories and 7 of 21 specs.