Comparison of Olympus 9-18mm f/4-5.6 ED Zuiko Digital and Vivitar 19-35mm f/3.5-4.5 Series 1 AF [S]ave
| Attribute |  Vivitar 19-35mm f/3.5-4.5 Series 1 AF × |  Olympus 9-18mm f/4-5.6 ED Zuiko Digital × |
|---|---|---|
| Notes | Available AF mounts: Canon, Minolta, Nikon, Pentax | Includes lens cap, lens hood |
| Aperture (f) | 3.50 - 27.00 | 4.00 - 22.00 |
| Magnification Ratio (x) | 0.08 | 0.24 |
| Filter Size (mm) | 77 | 72 |
| Closest Focus (m) | 0.5 | 0.25 |
| Length (mm) | 69 | 73 |
| Focal Length (mm) | 19.00 - 35.00 | 9.00 - 18.00 |
| Diameter (mm) | 82 | 79.5 |
| Brand | Vivitar | Olympus |
| Image Circle | 35mm | Image Circle |
| Name | Vivitar 19-35mm f/3.5-4.5 Series 1 AF | Olympus 9-18mm f/4-5.6 ED Zuiko Digital |
| Weight (g) | 300 | 280 |
| Type | Wide Zoom | Wide Zoom |
| Diagonal Angle of View (degree) | 63.00 - 97.00 | 62.00 - 100.00 |
| Diaphragm Blades | - | 7 |
| Zoom System | Rotary | Rotary |
| Lens Construction | 13 elements in 11 groups | 13 elements in 9 groups, including 1 aspherical ED lens and 2 aspherical elements |
| APS Equivalent | 1.5x: 28.5 - 52.5mm; 1.6x: 30.4 - 56mm | - |
| 35mm Equivalent | - | 18 - 36mm |
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