Samyang AF 12mm F2vsSigma 10-18mm F2.8 DC DN
AF 12mm F2
12mm / F2
18mm equiv.
—
10-18mm F2.8 DC DN
10-18mm / F2.8
15-27mm equiv.
—
Which to choose
When the AF 12mm F2 suits you better
- Brightness1.0 stops brighter — better in low light and blurs the background more
- Weight57g lighter, so easier to carry
When the 10-18mm F2.8 DC DN suits you better
- Zoom rangeCovers 10-18mm 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
- AF 12mm F257.2mm long × 70mm diameter
- 10-18mm F2.8 DC DN62mm long × 72.2mm diameter
Specifications compared
| Specification | Samyang AF 12mm F2 | Sigma 10-18mm F2.8 DC DN | Difference |
|---|---|---|---|
| Focal length (wide) | 12mm | 10mm | +2mm |
| Focal length (tele) | 12mm | 18mm | −6mm |
| Max aperture (wide) | F2 | F2.8 | 1.0 stops brighter |
| Max aperture (tele) | F2 | F2.8 | 1.0 stops brighter |
| Min focus distance | 20cm | — | No data |
| Max magnification | 0.09× | — | No data |
| Weight | 213g | 270g | −57g |
| Length | 57.2mm | 62mm | −4.8mm |
| Diameter | 70mm | 72.2mm | −2.2mm |
| Filter size | 62mm | 67mm | −5mm |
| Released | 2025 | 2024 | +1year |
| Stabilization | No | No | — |
| Weather sealing | No | Yes | No |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as AF 12mm F2 relative to 10-18mm F2.8 DC DN.The highlighted cell is the better side for that specification.
Check prices
AF 12mm F2
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10-18mm F2.8 DC DN
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AF 12mm F2 in detail10-18mm F2.8 DC DN in detailAll RF mount lenses