Fujifilm XF18-120mmF4 LM PZ WRvsSigma 17-40mm F1.8 DC
XF18-120mmF4 LM PZ WR
18-120mm / F4
27-180mm equiv.
—
17-40mm F1.8 DC
17-40mm / F1.8
26-60mm equiv.
—
Which to choose
When the XF18-120mmF4 LM PZ WR suits you better
- Weight70g lighter, so easier to carry
- Zoom rangeCovers 18-120mm in a single lens
When the 17-40mm F1.8 DC suits you better
- Brightness2.3 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
- XF18-120mmF4 LM PZ WR123.5mm long × 77.3mm diameter
- 17-40mm F1.8 DC118.2mm long × 72.9mm diameter
Specifications compared
| Specification | Fujifilm XF18-120mmF4 LM PZ WR | Sigma 17-40mm F1.8 DC | Difference |
|---|---|---|---|
| Focal length (wide) | 18mm | 17mm | +1mm |
| Focal length (tele) | 120mm | 40mm | +80mm |
| Max aperture (wide) | F4 | F1.8 | 2.3 stops darker |
| Max aperture (tele) | F4 | F1.8 | 2.3 stops darker |
| Min focus distance | 60cm | — | No data |
| Max magnification | 0.20× | — | No data |
| Weight | 460g | 530g | −70g |
| Length | 123.5mm | 118.2mm | +5.3mm |
| Diameter | 77.3mm | 72.9mm | +4.4mm |
| Filter size | 72mm | 67mm | +5mm |
| Released | 2022 | 2025 | −3year |
| Stabilization | No | No | — |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as XF18-120mmF4 LM PZ WR relative to 17-40mm F1.8 DC.The highlighted cell is the better side for that specification.
Check prices
XF18-120mmF4 LM PZ WR
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17-40mm F1.8 DC
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XF18-120mmF4 LM PZ WR in detail17-40mm F1.8 DC in detailAll X Mount lenses