Canon RF24-105mm F4-7.1 IS STMvsTamron 17-70mm F/2.8 Di III-A VC RXD
RF24-105mm F4-7.1 IS STM
24-105mm / F4-7.1
—
17-70mm F/2.8 Di III-A VC RXD
17-70mm / F2.8
26-105mm equiv.
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Which to choose
When the RF24-105mm F4-7.1 IS STM suits you better
- Weight135g lighter, so easier to carry
- Zoom rangeCovers 24-105mm in a single lens
When the 17-70mm F/2.8 Di III-A VC RXD suits you better
- Brightness1.0 stops brighter — better in low light and blurs the background more
- Weather sealingHas weather sealing
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
- RF24-105mm F4-7.1 IS STM88.8mm long × 76.6mm diameter
- 17-70mm F/2.8 Di III-A VC RXD117.3mm long × 74.6mm diameter
Specifications compared
| Specification | Canon RF24-105mm F4-7.1 IS STM | Tamron 17-70mm F/2.8 Di III-A VC RXD | Difference |
|---|---|---|---|
| Focal length (wide) | 24mm | 17mm | +7mm |
| Focal length (tele) | 105mm | 70mm | +35mm |
| Max aperture (wide) | F4 | F2.8 | 1.0 stops darker |
| Max aperture (tele) | F7.1 | F2.8 | 2.7 stops darker |
| Min aperture | F22 | — | No data |
| Min focus distance | 20cm | 19cm | +0.01m |
| Max magnification | 0.40× | — | No data |
| Aperture blades | 7blades | — | No data |
| Weight | 395g | 530g | −135g |
| Length | 88.8mm | 117.3mm | −28.5mm |
| Diameter | 76.6mm | 74.6mm | +2mm |
| Filter size | 67mm | 67mm | — |
| Released | 2020 | 2026 | −6year |
| Stabilization | Yes | Yes | — |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as RF24-105mm F4-7.1 IS STM relative to 17-70mm F/2.8 Di III-A VC RXD.The highlighted cell is the better side for that specification.
Check prices
RF24-105mm F4-7.1 IS STM
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17-70mm F/2.8 Di III-A VC RXD
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RF24-105mm F4-7.1 IS STM in detail17-70mm F/2.8 Di III-A VC RXD in detailAll RF mount lenses