Tamron 70-180mm F/2.8 Di III VXDvsTamron 70-300mm F/4.5-6.3 Di III RXD
70-180mm F/2.8 Di III VXD
70-180mm / F2.8
—
70-300mm F/4.5-6.3 Di III RXD
70-300mm / F4.5-6.3
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Which to choose
When the 70-180mm F/2.8 Di III VXD suits you better
- Brightness1.4 stops brighter — better in low light and blurs the background more
- Close focusFocuses as close as 27cm
When the 70-300mm F/4.5-6.3 Di III RXD suits you better
- Weight265g lighter, so easier to carry
- Zoom rangeCovers 70-300mm in a single lens
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
- 70-180mm F/2.8 Di III VXD149mm long × 81mm diameter
- 70-300mm F/4.5-6.3 Di III RXD148mm long × 77mm diameter
Specifications compared
| Specification | Tamron 70-180mm F/2.8 Di III VXD | Tamron 70-300mm F/4.5-6.3 Di III RXD | Difference |
|---|---|---|---|
| Focal length (wide) | 70mm | 70mm | — |
| Focal length (tele) | 180mm | 300mm | −120mm |
| Max aperture (wide) | F2.8 | F4.5 | 1.4 stops brighter |
| Max aperture (tele) | F2.8 | F6.3 | 2.3 stops brighter |
| Min aperture | F22 | F22 | — |
| Min focus distance | 27cm | 80cm | −0.53m |
| Max magnification | 0.50× | 0.20× | +0.30x |
| Aperture blades | 9blades | 7blades | +2blades |
| Weight | 810g | 545g | +265g |
| Length | 149mm | 148mm | +1mm |
| Diameter | 81mm | 77mm | +4mm |
| Filter size | 67mm | 67mm | — |
| Released | 2020 | 2021 | −1year |
| Stabilization | No | No | — |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 70-180mm F/2.8 Di III VXD relative to 70-300mm F/4.5-6.3 Di III RXD.The highlighted cell is the better side for that specification.
Check prices
70-180mm F/2.8 Di III VXD
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70-300mm F/4.5-6.3 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.
70-180mm F/2.8 Di III VXD in detail70-300mm F/4.5-6.3 Di III RXD in detailAll E-mount lenses