Sigma Contemporary 28-70mm f/2.8 DG DN
Sigma
94 Overall Score
vs
TTArtisan AF 23mm f/1.8 23mm
TTArtisan
52 Overall Score
What Buyers Say
Sigma Contemporary 28-70mm f/2.8 DG DN
No customer feedback yet
TTArtisan AF 23mm f/1.8 23mm
72 out of 100 low confidence 7 reviews
The TTArtisan AF 23mm F1.8 lens receives mostly positive feedback for its exceptional sharpness, solid metal build, and impressive low-light performance at a budget price. However, several users report inconsistent autofocus accuracy, especially with moving subjects, and one unit failed within two months. Overall, it is seen as a great value lens that punches above its weight class.
Pros
- Exceptional sharpness for the price
- Solid metal construction
- Impressive low-light performance
- Great value for money
- USB-C port for firmware updates
Cons
- Inconsistent autofocus accuracy
- Autofocus sluggish with moving subjects
- Unit failed within 60 days
- Slightly muted colors
- Not on par with other TTArtisan releases
Sharpness 4
Build quality 3
Autofocus accuracy 5
Value for money 4
Low light performance 3
Reliability 1
Scores
Macro
Professional
Portrait
Budget
Street
Video Cinema
Landscape
Travel
Wildlife Sports
Specifications
| Sigma Contemporary 28-70mm f/2.8 DG DN | TTArtisan AF 23mm f/1.8 23mm | |
|---|---|---|
| Optics | ||
| Type | zoom | prime |
| Focal Length Min | 28 mm | 23 mm |
| Focal Length Max | 70 mm | 23 mm |
| Elements | 16 | 11 |
| Groups | 12 | 9 |
| Aspherical Elements | 3★ | — |
| ED Elements | 4★ | 1 |
| Coating | Super Multi-Layer Coating and Nano Porous Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/16 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | Sony E | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.47 kg | 0.21 kg★ |
| Filter Thread | 67 mm | 52 mm |
| AF & Stabilization | ||
| AF Type | stepping motor | STM★ |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm★ | 300 mm |
| Max Magnification | 3.3 to 4.6 x★ | — |
Pros & Cons
Sigma Contemporary 28-70mm f/2.8 DG DN
- Strong macro (95th percentile)95th %ile
- Strong optical (95th percentile)95th %ile
- Strong bokeh (91st percentile)91st %ile
- Strong aperture (88th percentile)88th %ile
- Below average stabilization (34th percentile)
TTArtisan AF 23mm f/1.8 23mm
- Strong af (85th percentile)85th %ile
- Strong build (83rd percentile)83rd %ile
- Strong macro (69th percentile)
- Below average user sentiment (17th percentile)17th %ile
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Pricing
Sigma Contemporary 28-70mm f/2.8 DG DN0.122score per dollar
vs
TTArtisan AF 23mm f/1.8 23mm0.241score per dollar
TTArtisan AF 23mm f/1.8 23mm offers 2.0x better value for money
Verdict
Winner: Sigma Contemporary 28-70mm f/2.8 DG DN
Scores 94 overall, wins 9 of 9 usage categories and 7 of 21 specs.
