Viltrox AF 28mm F4.5 28mm
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
What Buyers Say
Viltrox AF 28mm F4.5 28mm
The Viltrox AF 28mm f/4.5 pancake lens is widely praised for its ultra-compact size, lightweight design, and excellent value, making it a favorite for street photography and travel. Users note it turns a full-frame camera into a highly portable setup, though the fixed f/4.5 aperture and lack of manual focus ring are limiting for some. Image quality is considered good for the price, but low-light performance and autofocus in dim conditions are common drawbacks. A few users reported a stuck rear lens cap or battery drain on certain Sony models, but overall sentiment is positive for its intended casual use.
Pros
- Ultra-compact and lightweight design
- Excellent value for the price
- Great for street photography and travel
- Sharp image quality for its class
- Built-in lens cover
Cons
- Fixed f/4.5 aperture
- No manual focus ring
- Poor low-light autofocus
- Battery drain on Sony A5100
- Stuck rear lens cap issue
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
The Pentax HD DA 20-40mm f/2.8-4 ED Limited DC WR lens is highly praised for its superb build quality, sharpness, and beautiful color rendition. Users love it as a versatile walk-around lens for street photography and landscapes, especially on APS-C bodies like the K-3. The main drawbacks are its variable aperture and a price that many feel is too high for the performance gain over kit lenses.
Pros
- Superb build quality
- Excellent sharpness
- Beautiful color rendition
- Weather resistant
- Versatile focal range for street and landscape
Cons
- Variable aperture (f/2.8-4)
- High price for performance gain
- Limited zoom range
- Not as wide as some kit lenses
Scores
Specifications
| Viltrox AF 28mm F4.5 28mm | Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm | |
|---|---|---|
| Optics | ||
| Type | prime | zoom |
| Focal Length Min | 28 mm | 20 mm |
| Focal Length Max | 28 mm | 40 mm |
| Elements | 6 | 9 |
| Groups | 6 | 8 |
| Aspherical Elements | 2★ | 1 |
| ED Elements | 2★ | 1 |
| Coating | nano multi-coating | HD coating |
| Aperture | ||
| Max Aperture | f/28 | f/2.8 |
| Min Aperture | f/4.5 | 2.8-4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 6 | 9★ |
| Build | ||
| Mount | Fujifilm X | Pentax K |
| Format | APS-C | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.06 kg★ | 0.28 kg |
| Filter Thread | — | 55 mm |
| AF & Stabilization | ||
| AF Type | VCM Voice Coil Autofocus Motor | Autofocus |
| Stabilization | ✓ | ✓ |
| Focus | ||
| Min Focus Distance | 340 mm | 40 mm★ |
| Max Magnification | 1:10 | 1:5 |
Pros & Cons
Viltrox AF 28mm F4.5 28mm
- Strong build (100th percentile)100th %ile
- Strong af (95th percentile)95th %ile
- Strong stabilization (80th percentile)80th %ile
- Strong macro (66th percentile)
- Below average bokeh (3rd percentile)3rd %ile
- Below average aperture (8th percentile)8th %ile
- Below average user sentiment (16th percentile)16th %ile
- Below average versatility (34th percentile)
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
- Strong macro (97th percentile)97th %ile
- Strong bokeh (89th percentile)89th %ile
- Strong aperture (86th percentile)86th %ile
- Strong build (86th percentile)86th %ile
Pricing
Viltrox AF 28mm F4.5 28mm offers 5.2x better value for money
Verdict
Scores 87 overall, wins 9 of 9 usage categories and 2 of 21 specs.
