Comparison of Nikon 50mm ƒ/1.8D AF Nikkor and Sigma 30mm F2.8 EX DN [S]ave
| Attribute |  Nikon 50mm ƒ/1.8D AF Nikkor × |  Sigma 30mm F2.8 EX DN × |
|---|---|---|
| Aperture (f) | 1.80 - 22.00 | 2.80 - 22.00 |
| Diagonal Angle of View (degree) | 46.00 | 39.60 |
| Magnification Ratio (x) | 0.15 | 0.12 |
| Filter Size (mm) | 52 | 46 |
| Type | Standard Prime | Standard Prime |
| Closest Focus (m) | 0.46 | 0.3 |
| APS Equivalent | 75mm | 1.5x: 45mm; 2.0x: 60mm |
| Notes | - | Lens mounts: Sony E-Mount, Micro Four Thirds. Sigma's Super Multi-Layer Coating. |
| Image Circle | 35mm | APS-C |
| Focal Length (mm) | 50.00 | 30.00 |
| Brand | Nikon | Sigma |
| Name | Nikon 50mm ƒ/1.8D AF Nikkor | Sigma 30mm F2.8 EX DN |
| Weight (g) | 156 | 135 |
| Diameter (mm) | 64 | 60.6 |
| Diaphragm Blades | 7 | 7 |
| Focus Details | - | Inner focusing with linear AF motor |
| Length (mm) | 39 | 38.6 |
| Diaphragm Blades Type | - | rounded |
| Lens Construction | 6 Elements in 5 groups | 7 elements in 5 groups, including 2 aspherical elements |
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