Sigma 18-50mm F2.8 DC DNvsSigma 30mm F1.4 DC DN
18-50mm F2.8 DC DN
18-50mm / F2.8
27-75mm equiv.
—
30mm F1.4 DC DN
30mm / F1.4
45mm equiv.
—
Which to choose
When the 18-50mm F2.8 DC DN suits you better
- Zoom rangeCovers 18-50mm in a single lens
When the 30mm F1.4 DC DN suits you better
- Brightness2.0 stops brighter — better in low light and blurs the background more
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
- 18-50mm F2.8 DC DN74.5mm long × 69.2mm diameter
- 30mm F1.4 DC DN71.3mm long × 69mm diameter
Specifications compared
| Specification | Sigma 18-50mm F2.8 DC DN | Sigma 30mm F1.4 DC DN | Difference |
|---|---|---|---|
| Focal length (wide) | 18mm | 30mm | −12mm |
| Focal length (tele) | 50mm | 30mm | +20mm |
| Max aperture (wide) | F2.8 | F1.4 | 2.0 stops darker |
| Max aperture (tele) | F2.8 | F1.4 | 2.0 stops darker |
| Weight | 300g | 285g | +15g |
| Length | 74.5mm | 71.3mm | +3.2mm |
| Diameter | 69.2mm | 69mm | +0.2mm |
| Filter size | 55mm | 52mm | +3mm |
| Released | 2024 | 2024 | — |
| Stabilization | No | No | — |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 18-50mm F2.8 DC DN relative to 30mm F1.4 DC DN.The highlighted cell is the better side for that specification.
Check prices
18-50mm F2.8 DC DN
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30mm F1.4 DC DN
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18-50mm F2.8 DC DN in detail30mm F1.4 DC DN in detailAll RF mount lenses