Panasonic Lumix S Pro S-R1635 16-35mm
Panasonic
74 Overall Score
vs
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
Pentax
86 Overall Score
What Buyers Say
Panasonic Lumix S Pro S-R1635 16-35mm
No customer feedback yet
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
82 out of 100 medium confidence 24 reviews
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
Build quality 8
Sharpness 7
Color rendition 5
Value for money 4
Weather resistance 3
Variable aperture 3
Scores
Macro
Street
Travel
Budget
Portrait
Professional
Video Cinema
Wildlife Sports
Landscape
Specifications
| Panasonic Lumix S Pro S-R1635 16-35mm | Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm | |
|---|---|---|
| Optics | ||
| Type | zoom | zoom |
| Focal Length Min | 16 mm | 20 mm |
| Focal Length Max | 35 mm | 40 mm |
| Elements | 12 | 9 |
| Groups | 9 | 8 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 1 | 1 |
| Coating | UHR (Ultra-High Refractive Index) | HD coating |
| Aperture | ||
| Max Aperture | f/4 | f/2.8 |
| Min Aperture | f/4 | 2.8-4 |
| Constant | ✓★ | ✗ |
| Diaphragm Blades | 9 | 9 |
| Build | ||
| Mount | L-Mount | Pentax K |
| Format | full-frame★ | APS-C |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.50 kg | 0.28 kg★ |
| Filter Thread | 77 mm | 55 mm |
| AF & Stabilization | ||
| AF Type | double-magnet linear motor★ | Autofocus |
| Stabilization | ✗ | ✓★ |
| Focus | ||
| Min Focus Distance | 250 mm | 40 mm★ |
| Max Magnification | 0.23x | 1:5★ |
Pros & Cons
Panasonic Lumix S Pro S-R1635 16-35mm
- Strong af (98th percentile)98th %ile
- Strong bokeh (81st percentile)81st %ile
- Strong optical (78th percentile)
- Strong versatility (75th 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
Panasonic Lumix S Pro S-R1635 16-35mm0.064score per dollar
vs
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm0.167score per dollar
Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm offers 2.6x better value for money
Verdict
Winner: Pentax HD DA 20-40mm F2.8-4 Limited DC WR Wide Zoom 40mm
Scores 86 overall, wins 6 of 9 usage categories and 4 of 21 specs.
