Comparison of Panasonic 20mm ƒ/1.7 ASPH LUMIX G and Sony 35mm ƒ/2.8 ZA Carl Zeiss Sonnar T* SEL35F28Z [S]ave
| Attribute |  Sony 35mm ƒ/2.8 ZA Carl Zeiss Sonnar T* SEL35F28Z × |  Panasonic 20mm ƒ/1.7 ASPH LUMIX G × |
|---|---|---|
| Diagonal Angle of View (degree) | 63.00 | 57.00 |
| Aperture (f) | 2.80 - 22.00 | 1.70 - 16.00 |
| Diaphragm Blades Type | rounded | rounded |
| Filter Size (mm) | 49 | 46 |
| Notes | Included Accessories: ALC-SH129 Lens Hood | Also offered as part DMC-GF1 kit. Included Accessories: lens hood, storage bag |
| Focus Details | Linear motor | - |
| Type | Wide Prime | Wide Prime |
| Diaphragm Blades | 7 | 7 |
| Lens Construction | 7 elements in 5 groups with 3 apheric elements | 7 elements in 5 groups, including 2 aspherical elements |
| Image Circle | 35mm (Full-frame E-Mount) | Image Circle |
| Focal Length (mm) | 35.00 | 20.00 |
| Brand | Sony | Panasonic |
| Name | Sony 35mm ƒ/2.8 ZA Carl Zeiss Sonnar T* SEL35F28Z | Panasonic 20mm ƒ/1.7 ASPH LUMIX G |
| Weight (g) | 120 | 100 |
| Diameter (mm) | 61.5 | 63 |
| Length (mm) | 36.5 | 25.5 |
| 35mm Equivalent | - | 40mm |
| Magnification Ratio (x) | 0.12 | 0.13 |
| APS Equivalent | 52.5mm | - |
| Closest Focus (m) | 0.35 | 0.2 |
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