Viltrox Air AF 9mm F2.8 APS-C 9mm
Yongnuo 50F1.8S DF 50mm
What Buyers Say
Viltrox Air AF 9mm F2.8 APS-C 9mm
The Viltrox 23mm f/1.4 lens for Fuji X mount receives overwhelmingly positive feedback for its sharpness, fast and quiet autofocus, and excellent build quality at a budget price. A few users note the lack of an aperture ring and some corner softness, but most consider it a great value compared to the Fujifilm equivalent. One reviewer received a wrong hood, and another found it heavy and less sharp than the Viltrox 35mm Air lens.
Pros
- Excellent sharpness
- Fast and quiet autofocus
- Great build quality for the price
- Good value compared to Fujifilm
- Nice color rendering
Cons
- No aperture ring
- Slight corner softness
- Heavy for some users
- Received wrong hood
- Less sharp than Viltrox 35mm Air
Yongnuo 50F1.8S DF 50mm
This 50mm f/1.8 lens is widely praised as an excellent value-for-money prime lens for beginners and hobbyists. Users highlight its sharp foreground focus and pleasing bokeh, making it ideal for portraits and product shots. The build quality feels cheap and the autofocus is noisy and slow, but most agree the optical performance far exceeds the low price. A few issues with durability and incompatibility with newer lens hoods were noted.
Pros
- Excellent value for money
- Sharp foreground focus
- Pleasing bokeh effect
- Great for portraits
- Lightweight and compact
Cons
- Noisy autofocus
- Slow autofocus
- Cheap build quality
- Durability concerns
- Incompatible with newer lens hoods
Scores
Specifications
| Viltrox Air AF 9mm F2.8 APS-C 9mm | Yongnuo 50F1.8S DF 50mm | |
|---|---|---|
| Optics | ||
| Type | wide-angle | prime |
| Focal Length Min | 9 mm | 50 mm |
| Focal Length Max | 9 mm | 50 mm |
| Elements | 13 | 10 |
| Groups | 11 | 6 |
| Aspherical Elements | 2★ | 1 |
| ED Elements | 3★ | 2 |
| Coating | Specialized Multi-Layer Coating Technology | Nano-multilayer Coating |
| Aperture | ||
| Max Aperture | f/9 | f/16 |
| Min Aperture | f/2.8 | f/1.8 |
| Constant | ✓ | ✓ |
| Diaphragm Blades | — | 9★ |
| Build | ||
| Mount | Nikon Z | Sony E |
| Format | APS-C | full-frame★ |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.17 kg★ | 0.27 kg |
| Filter Thread | 58 mm | 58 mm |
| AF & Stabilization | ||
| AF Type | STM★ | Digital stepping motor |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 130 mm★ | 450 mm |
| Max Magnification | 0.13 m | 0.13x |
Pros & Cons
Viltrox Air AF 9mm F2.8 APS-C 9mm
- Strong build (95th percentile)95th %ile
- Strong af (85th percentile)85th %ile
- Strong optical (84th percentile)84th %ile
- Strong social proof (82nd percentile)82nd %ile
- Below average versatility (34th percentile)
Yongnuo 50F1.8S DF 50mm
- Strong build (86th percentile)86th %ile
- Strong af (85th percentile)85th %ile
- Strong stabilization (80th percentile)80th %ile
- Below average social proof (25th percentile)
- Below average user sentiment (30th percentile)
- Below average macro (31st percentile)
- Below average versatility (34th percentile)
Pricing
Yongnuo 50F1.8S DF 50mm offers 1.8x better value for money
Verdict
Scores 77 overall, wins 9 of 9 usage categories and 5 of 21 specs.
