Sigma 15mm F1.4 DC ContemporaryvsTamron 11-20mm F/2.8 Di III-A RXD
15mm F1.4 DC Contemporary
15mm / F1.4
23mm equiv.
—
11-20mm F/2.8 Di III-A RXD
11-20mm / F2.8
17-30mm equiv.
—
Which to choose
When the 15mm F1.4 DC Contemporary suits you better
- Brightness2.0 stops brighter — better in low light and blurs the background more
- Weight115g lighter, so easier to carry
When the 11-20mm F/2.8 Di III-A RXD suits you better
- Zoom rangeCovers 11-20mm in a single lens
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
- 15mm F1.4 DC Contemporary64.8mm long × 64mm diameter
- 11-20mm F/2.8 Di III-A RXD86.2mm long × 73mm diameter
Specifications compared
| Specification | Sigma 15mm F1.4 DC Contemporary | Tamron 11-20mm F/2.8 Di III-A RXD | Difference |
|---|---|---|---|
| Focal length (wide) | 15mm | 11mm | +4mm |
| Focal length (tele) | 15mm | 20mm | −5mm |
| Max aperture (wide) | F1.4 | F2.8 | 2.0 stops brighter |
| Max aperture (tele) | F1.4 | F2.8 | 2.0 stops brighter |
| Min aperture | F16 | F16 | — |
| Min focus distance | — | 15cm | No data |
| Max magnification | — | 0.25× | No data |
| Aperture blades | — | 7blades | No data |
| Weight | 220g | 335g | −115g |
| Length | 64.8mm | 86.2mm | −21.4mm |
| Diameter | 64mm | 73mm | −9mm |
| Filter size | 58mm | 67mm | −9mm |
| Released | 2025 | 2021 | +4year |
| Stabilization | No | No | — |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 15mm F1.4 DC Contemporary relative to 11-20mm F/2.8 Di III-A RXD.The highlighted cell is the better side for that specification.
Check prices
15mm F1.4 DC Contemporary
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11-20mm F/2.8 Di III-A RXD
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15mm F1.4 DC Contemporary in detail11-20mm F/2.8 Di III-A RXD in detailAll E-mount lenses