Lens Comparison
Sony E 70-350mm f/4.5-6.3 G OSS vs Tamron 17-28mm F/2.8 Di III RXD
Key Differences
- Tamron 17-28mm F/2.8 Di III RXD has a better min focus distance (19 cm vs 87 cm).
- Tamron 17-28mm F/2.8 Di III RXD has a better maximum aperture (f/2.8 vs f/4.5).
- Tamron 17-28mm F/2.8 Di III RXD has a better weight (420g (14.8 oz) vs 625g (1.38 lb)).
- Tamron 17-28mm F/2.8 Di III RXD has a better length (99mm vs 142mm).
- Sony E 70-350mm f/4.5-6.3 G OSS has a better max magnification (0.32x vs 0.19x).
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 70-350mm | 17-28mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 21 | 13 |
| Optical Groups | 16 | 12 |
| Aperture & Iris | ||
| Maximum Aperture | f/4.5 | f/2.8 |
| Minimum Aperture | f/32 | f/22 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | APS-C | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | − | − |
| 35mm Equivalent | 105-525mm | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | Stepping | RXD |
| Focus Limiter | Yes | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 87 cm | 19 cm |
| Max Magnification | 0.32x | 0.19x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | No |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $799 | $799 |
| Filter Size | 67mm | 67mm |
| Diameter | 77.5mm | 73mm |
| Length | 142mm | 99mm |
| Weight | 625g (1.38 lb) | 420g (14.8 oz) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
