Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
Pentax Limited 28050 21mm
What Buyers Say
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
The Tamron 28-300mm super-zoom wins praise for its lightweight design, versatile focal range, and solid image quality. Users appreciate the compact build and smooth zoom mechanism, but note the slow aperture and trade-offs in sharpness compared to more expensive zooms. Verified reviewers find it an ideal travel lens that pairs well with Sony bodies.
Pros
- Lightweight design
- Versatile 28-300mm focal range
- Smooth zoom ring operation
- Compact build for travel
- Good integration with Sony bodies
Cons
- Small maximum aperture (f/4-7.1)
- Reduced sharpness vs. premium zooms
- Not an internal zoom lens
- Slow autofocus at high fps on some bodies
Pentax Limited 28050 21mm
The Pentax HD D FA 21mm f/2.4ED Limited DC WR lens is highly praised for its unique image look, sharpness, and build quality. Users find it a worthy successor to older lenses like the Zeiss Distagon 21mm, with excellent close focusing and minimal distortion. Some note that its magic is best at f/2.4, with vignetting adding character, and that it pairs well with other Pentax Limited lenses.
Pros
- Unique image look at f/2.4
- Excellent sharpness
- Great close focusing ability
- Minimal distortion and chromatic aberrations
- Solid build quality
Cons
- Severe vignetting at f/2.4
- Loses magic at f/5.6
- Images may be overexposed with Pentax K-1
- High cost
- Not as good as 31mm Limited for contrast/saturation
Scores
Specifications
| Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm | Pentax Limited 28050 21mm | |
|---|---|---|
| Optics | ||
| Type | zoom | wide-angle |
| Focal Length Min | 28 mm | 21 mm |
| Focal Length Max | 300 mm | 21 mm |
| Elements | 20 | 11 |
| Groups | 13 | 8 |
| Aspherical Elements | 3★ | 1 |
| ED Elements | 2 | 4★ |
| Coating | fluorine coating | High-Grade Multi-Layer HD Coating |
| Aperture | ||
| Max Aperture | f/4 | f/22 |
| Min Aperture | 4-7.1 | f/2.4 |
| Constant | ✗ | ✓★ |
| Diaphragm Blades | 9★ | 8 |
| Build | ||
| Mount | Sony E | Pentax K |
| Format | full-frame | full-frame |
| Weather Sealed | ✓ | ✓ |
| Weight | 0.59 kg | 0.42 kg★ |
| Filter Thread | 67 mm | 67 mm |
| AF & Stabilization | ||
| AF Type | VXD linear motor★ | Autofocus |
| Stabilization | ✓★ | ✗ |
| Focus | ||
| Min Focus Distance | 190 mm | 180 mm★ |
| Max Magnification | 1:2.8★ | 0.26x |
Pros & Cons
Tamron Di III VC 28-300mm f/4-7.1 Di III VC VXD 300mm
- Strong versatility (98th percentile)98th %ile
- Strong af (98th percentile)98th %ile
- Strong optical (96th percentile)96th %ile
- Strong user sentiment (92nd percentile)92nd %ile
Pentax Limited 28050 21mm
- Strong build (76th percentile)
- Strong optical (76th percentile)
- Strong user sentiment (66th percentile)
- Below average bokeh (19th percentile)19th %ile
- Below average aperture (22nd percentile)
- Below average versatility (33rd percentile)
- Below average stabilization (34th percentile)
Pricing
Verdict
Scores 100 overall, wins 9 of 9 usage categories and 5 of 21 specs.
