Comparison of Sigma 70-300mm f/4-5.6 APO DG and Vivitar 100-400mm f/4.5-6.7 Series 1 AF [S]ave
| Attribute |  Vivitar 100-400mm f/4.5-6.7 Series 1 AF × |  Sigma 70-300mm f/4-5.6 APO DG × |
|---|---|---|
| Filter Size (mm) | 67 | 58 |
| Closest Focus (m) | 2 | 0.95 |
| Magnification Ratio (x) | 0.25 | 0.5 |
| Length (mm) | 162 | 122 |
| Front Element Rotation | - | - |
| Diagonal Angle of View (degree) | 6.40 - 24.00 | 8.20 - 34.30 |
| Focus Details | AF/MF switch | Inner focusing system |
| Focal Length (mm) | 100.00 - 400.00 | 70.00 - 300.00 |
| APS Equivalent | 1.5x: 150 - 600mm; 1.6x: 160 - 640mm | 1.5x: 105 - 450mm; 1.6x: 112 - 480mm |
| Brand | Vivitar | Sigma |
| Image Circle | 35mm | 35mm |
| Name | Vivitar 100-400mm f/4.5-6.7 Series 1 AF | Sigma 70-300mm f/4-5.6 APO DG |
| Weight (g) | 740 | 545 |
| Type | Telephoto Zoom | Telephoto Zoom |
| Notes | Available AF mounts: Canon, Minolta, Nikon, Pentax | Available AF Mounts: Sigma, Canon, Nikon, Sony, Pentax |
| Diaphragm Blades | - | 9 |
| Aperture (f) | 4.50 - 32.00 | 4.00 - 22.00 |
| Lens Construction | 12 elements in 9 groups | 14 elements in 10 groups, including 3 SLD elements |
| Zoom System | Push-Pull | Rotary |
| Diameter (mm) | 74.2 | 76.6 |
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