Fujifilm XF16-50mmF2.8-4.8 R LM WRvsSigma 17-40mm F1.8 DC
XF16-50mmF2.8-4.8 R LM WR
16-50mm / F2.8-4.8
24-75mm equiv.
—
17-40mm F1.8 DC
17-40mm / F1.8
26-60mm equiv.
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Which to choose
When the XF16-50mmF2.8-4.8 R LM WR suits you better
- Weight290g lighter, so easier to carry
- Zoom rangeCovers 16-50mm in a single lens
When the 17-40mm F1.8 DC suits you better
- Brightness1.3 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
- XF16-50mmF2.8-4.8 R LM WR71.4mm long × 65mm diameter
- 17-40mm F1.8 DC118.2mm long × 72.9mm diameter
Specifications compared
| Specification | Fujifilm XF16-50mmF2.8-4.8 R LM WR | Sigma 17-40mm F1.8 DC | Difference |
|---|---|---|---|
| Focal length (wide) | 16mm | 17mm | −1mm |
| Focal length (tele) | 50mm | 40mm | +10mm |
| Max aperture (wide) | F2.8 | F1.8 | 1.3 stops darker |
| Max aperture (tele) | F4.8 | F1.8 | 2.8 stops darker |
| Min focus distance | 24cm | — | No data |
| Max magnification | 0.30× | — | No data |
| Weight | 240g | 530g | −290g |
| Length | 71.4mm | 118.2mm | −46.8mm |
| Diameter | 65mm | 72.9mm | −7.9mm |
| Filter size | 58mm | 67mm | −9mm |
| Released | 2024 | 2025 | −1year |
| Stabilization | No | No | — |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as XF16-50mmF2.8-4.8 R LM WR relative to 17-40mm F1.8 DC.The highlighted cell is the better side for that specification.
Check prices
XF16-50mmF2.8-4.8 R LM WR
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17-40mm F1.8 DC
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XF16-50mmF2.8-4.8 R LM WR in detail17-40mm F1.8 DC in detailAll X Mount lenses