Tamron 17-70mm F/2.8 Di III-A VC RXDvsZEISS Touit 1.8/32
17-70mm F/2.8 Di III-A VC RXD
17-70mm / F2.8
26-105mm equiv.
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Touit 1.8/32
32mm / F1.8
48mm equiv.
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Which to choose
When the 17-70mm F/2.8 Di III-A VC RXD suits you better
- Close focusFocuses as close as 19cm
- Zoom rangeCovers 17-70mm in a single lens
- StabilizationHas stabilization
- Weather sealingHas weather sealing
When the Touit 1.8/32 suits you better
- Brightness1.3 stops brighter — better in low light and blurs the background more
- Weight330g lighter, so easier to carry
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 RXD119.6mm long × 74.6mm diameter
- Touit 1.8/3258mm long × 65mm diameter
Specifications compared
| Specification | Tamron 17-70mm F/2.8 Di III-A VC RXD | ZEISS Touit 1.8/32 | Difference |
|---|---|---|---|
| Focal length (wide) | 17mm | 32mm | −15mm |
| Focal length (tele) | 70mm | 32mm | +38mm |
| Max aperture (wide) | F2.8 | F1.8 | 1.3 stops darker |
| Max aperture (tele) | F2.8 | F1.8 | 1.3 stops darker |
| Min focus distance | 19cm | 37cm | −0.18m |
| Weight | 530g | 200g | +330g |
| Length | 119.6mm | 58mm | +61.6mm |
| Diameter | 74.6mm | 65mm | +9.6mm |
| Filter size | 67mm | 52mm | +15mm |
| Released | 2022 | 2013 | +9year |
| Stabilization | Yes | No | Yes |
| Weather sealing | Yes | No | Yes |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 17-70mm F/2.8 Di III-A VC RXD relative to Touit 1.8/32.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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Touit 1.8/32
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17-70mm F/2.8 Di III-A VC RXD in detailTouit 1.8/32 in detailAll X Mount lenses