Sigma Contemporary 18-50mm f/2.8 DC DN
AstrHori 6.5mm F2.0 6mm
What Buyers Say
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
AstrHori 6.5mm F2.0 6mm
This manual fisheye lens delivers a distinctive circular image with strong distortion that many users love for creative shots like skateboarding videos and travel photos. Build quality is praised as solid for the price, but compatibility issues on Canon mirrorless and full-frame cameras are a notable drawback. Focusing is tricky due to the manual-only design and narrow depth of field at wide apertures. Overall, it's a fun, affordable lens for those who understand its limitations.
Pros
- Solid build quality for the price
- Fun creative fisheye effect
- Compact and portable
- Good value for money
- Sharp image in center
Cons
- Manual focus only, tricky to use
- Compatibility issues with Canon mirrorless
- Small image circle on full-frame cameras
- No autofocus
- Cannot use lens filters
Scores
Specifications
| Sigma Contemporary 18-50mm f/2.8 DC DN | AstrHori 6.5mm F2.0 6mm | |
|---|---|---|
| Optics | ||
| Type | zoom | fisheye |
| Focal Length Min | 18 mm | 6 mm |
| Focal Length Max | 50 mm | 6 mm |
| Elements | 13 | 6 |
| Groups | 10 | 5 |
| Aspherical Elements | 3★ | — |
| ED Elements | 1★ | — |
| Coating | Super Multi-Layer Coating | — |
| Aperture | ||
| Max Aperture | f/2.8 | f/2 |
| Min Aperture | f/2.8 | f/2 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 7 | 9★ |
| Build | ||
| Mount | Sony E | Nikon Z |
| Format | APS-C | APS-C |
| Weather Sealed | ✓★ | — |
| Weight | 0.29 kg | 0.27 kg★ |
| Filter Thread | 55 mm | — |
| AF & Stabilization | ||
| AF Type | stepping motor★ | manual focus only |
| Stabilization | ✗ | ✗ |
| Focus | ||
| Min Focus Distance | 121 mm★ | 200 mm |
| Max Magnification | 1:2.8★ | — |
Pros & Cons
Sigma Contemporary 18-50mm f/2.8 DC DN
- Strong macro (92nd percentile)92nd %ile
- Strong social proof (90th percentile)90th %ile
- Strong aperture (86th percentile)86th %ile
- Strong af (86th percentile)86th %ile
AstrHori 6.5mm F2.0 6mm
- Strong bokeh (94th percentile)94th %ile
- Strong aperture (92nd percentile)92nd %ile
- Strong macro (84th percentile)84th %ile
- Strong build (71st percentile)
- Below average optical (1st percentile)1st %ile
- Below average af (14th percentile)14th %ile
- Below average user sentiment (16th percentile)16th %ile
- Below average versatility (34th percentile)
Pricing
AstrHori 6.5mm F2.0 6mm offers 2.0x better value for money
Verdict
Scores 99 overall, wins 9 of 9 usage categories and 7 of 21 specs.
