TTArtisan AF 40mm f/2 40mm
Sigma Contemporary 18-50mm f/2.8 DC DN
What Buyers Say
TTArtisan AF 40mm f/2 40mm
The TTArtisan 40mm f/2 lens is widely praised for its compact size, solid build, and excellent value for money. Many users love the manual aperture ring and the USB-C port in the lens cap for firmware updates. However, autofocus performance is a major point of contention: while some find it fast and reliable, others report persistent hunting and failure to lock focus, especially on certain camera bodies. A few users also note chromatic aberration and flare, but overall image quality is considered sharp and impressive for the price.
Pros
- Compact and lightweight design
- Excellent value for money
- Sharp image quality
- Manual aperture ring with clicks
- USB-C port in lens cap for firmware updates
Cons
- Inconsistent autofocus performance
- Autofocus hunting on some cameras
- Chromatic aberration
- Flare when pointed at the sun
- Minimum focus distance could be shorter
Sigma Contemporary 18-50mm f/2.8 DC DN
The Sigma 18-50mm f/2.8 DC DN Contemporary is widely praised as a compact, lightweight, and sharp standard zoom for APS-C mirrorless cameras. Users consistently highlight its excellent image quality, fast f/2.8 aperture, and affordable price as major strengths, making it a popular upgrade from kit lenses. Common criticisms include the lack of optical stabilization and a poorly designed lens hood, but overall sentiment is overwhelmingly positive.
Pros
- Excellent image sharpness
- Compact and lightweight design
- Fast f/2.8 constant aperture
- Great value for the price
- Fast and silent autofocus
Cons
- No optical image stabilization
- Poorly designed lens hood
- No weather sealing
- Plastic build quality
- Zoom ring direction opposite to Fujifilm
Scores
Specifications
| TTArtisan AF 40mm f/2 40mm | Sigma Contemporary 18-50mm f/2.8 DC DN | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 40 mm | 18 mm |
| Focal Length Max | 40 mm | 50 mm |
| Elements | 9 | 13 |
| Groups | 6 | 10 |
| Aspherical Elements | 1 | 3★ |
| ED Elements | 1 | 1 |
| Coating | — | Super Multi-Layer Coating |
| Aperture | ||
| Max Aperture | f/16 | f/2.8 |
| Min Aperture | f/2 | f/2.8 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 7 | 7 |
| Build | ||
| Mount | L-Mount | Sony E |
| Format | full-frame★ | APS-C |
| Weather Sealed | — | ✓★ |
| Weight | 0.18 kg★ | 0.29 kg |
| Filter Thread | 52 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | STM★ | stepping motor |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 400 mm | 121 mm★ |
| Max Magnification | — | 1:2.8★ |
Pros & Cons
TTArtisan AF 40mm f/2 40mm
- Strong build (87th percentile)87th %ile
- Strong af (85th percentile)85th %ile
- Strong social proof (66th percentile)
- Below average bokeh (30th percentile)
- Below average user sentiment (30th percentile)
- Below average versatility (34th percentile)
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong social proof (91st percentile)91st %ile
- Strong macro (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
Pricing
TTArtisan AF 40mm f/2 40mm offers 2.6x better value for money
Verdict
Scores 98 overall, wins 9 of 9 usage categories and 5 of 21 specs.
