Tamron 17-70mm F/2.8 Di III-A VC RXDvsTamron 28-75mm F/2.8 Di III RXD
17-70mm F/2.8 Di III-A VC RXD
17-70mm / F2.8
26-105mm equiv.
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28-75mm F/2.8 Di III RXD
28-75mm / F2.8
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Which to choose
When the 17-70mm F/2.8 Di III-A VC RXD suits you better
- Zoom rangeCovers 17-70mm in a single lens
- StabilizationHas stabilization
When the 28-75mm F/2.8 Di III RXD suits you better
No standout advantage in this comparison.
These points are derived mechanically from the numbers. How a lens actually renders does not show up in specifications, so look at samples before deciding.
Size compared
- 17-70mm F/2.8 Di III-A VC RXD119.3mm long × 74.6mm diameter
- 28-75mm F/2.8 Di III RXD117.8mm long × 73mm diameter
Specifications compared
| Specification | Tamron 17-70mm F/2.8 Di III-A VC RXD | Tamron 28-75mm F/2.8 Di III RXD | Difference |
|---|---|---|---|
| Focal length (wide) | 17mm | 28mm | −11mm |
| Focal length (tele) | 70mm | 75mm | −5mm |
| Max aperture (wide) | F2.8 | F2.8 | — |
| Max aperture (tele) | F2.8 | F2.8 | — |
| Min aperture | F22 | F22 | — |
| Min focus distance | 19cm | 19cm | — |
| Max magnification | 0.21× | 0.34× | −0.13x |
| Aperture blades | 9blades | 9blades | — |
| Weight | 525g | 550g | −25g |
| Length | 119.3mm | 117.8mm | +1.5mm |
| Diameter | 74.6mm | 73mm | +1.6mm |
| Filter size | 67mm | 67mm | — |
| Released | 2021 | 2018 | +3year |
| Stabilization | Yes | No | Yes |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 17-70mm F/2.8 Di III-A VC RXD relative to 28-75mm F/2.8 Di III RXD.The highlighted cell is the better side for that specification.
Check prices
17-70mm F/2.8 Di III-A VC RXD
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28-75mm F/2.8 Di III RXD
ADLinks to Amazon, B&H Photo, Adorama, KEH Camera, MPB, eBay are affiliate links. We may earn a commission if you buy through them, at no extra cost to you.Links marked “Search results” go to that retailer’s search page for this lens name.Check price and availability on the retailer’s own site.
17-70mm F/2.8 Di III-A VC RXD in detail28-75mm F/2.8 Di III RXD in detailAll E-mount lenses