Sigma 19mm F2.8 EX DNvsTamron 17-50mm F/4 Di III VXD
19mm F2.8 EX DN
19mm / F2.8
29mm equiv.
—
17-50mm F/4 Di III VXD
17-50mm / F4
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Which to choose
When the 19mm F2.8 EX DN suits you better
- Brightness1.0 stops brighter — better in low light and blurs the background more
- Weight320g lighter, so easier to carry
When the 17-50mm F/4 Di III VXD suits you better
- Zoom rangeCovers 17-50mm in a single lens
- 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
- 19mm F2.8 EX DN45.7mm long × 60.6mm diameter
- 17-50mm F/4 Di III VXD114.4mm long × 74.8mm diameter
Specifications compared
| Specification | Sigma 19mm F2.8 EX DN | Tamron 17-50mm F/4 Di III VXD | Difference |
|---|---|---|---|
| Focal length (wide) | 19mm | 17mm | +2mm |
| Focal length (tele) | 19mm | 50mm | −31mm |
| Max aperture (wide) | F2.8 | F4 | 1.0 stops brighter |
| Max aperture (tele) | F2.8 | F4 | 1.0 stops brighter |
| Min aperture | F22 | F22 | — |
| Min focus distance | 20cm | 19cm | +0.01m |
| Max magnification | 0.13× | 0.25× | −0.12x |
| Aperture blades | 7blades | 9blades | −2blades |
| Weight | 140g | 460g | −320g |
| Length | 45.7mm | 114.4mm | −68.7mm |
| Diameter | 60.6mm | 74.8mm | −14.2mm |
| Filter size | 46mm | 67mm | −21mm |
| Released | 2012 | 2024 | −12year |
| Stabilization | No | No | — |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 19mm F2.8 EX DN relative to 17-50mm F/4 Di III VXD.The highlighted cell is the better side for that specification.
Check prices
19mm F2.8 EX DN
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17-50mm F/4 Di III VXD
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19mm F2.8 EX DN in detail17-50mm F/4 Di III VXD in detailAll E-mount lenses