Comparison of Canon EF 28-90mm f/4-5.6 III and Tamron AF 28-80mm f/3.5-5.6 Aspherical [S]ave
| Attribute |  Tamron AF 28-80mm f/3.5-5.6 Aspherical × |  Canon EF 28-90mm f/4-5.6 III × |
|---|---|---|
| Zoom System | Rotary | Rotary |
| Aperture (f) | 3.50 - 22.00 | 4.00 - 32.00 |
| Diagonal Angle of View (degree) | 30.00 - 75.00 | 27.00 - 75.00 |
| Magnification Ratio (x) | 0.13 | 0.3 |
| Filter Size (mm) | 58 | 58 |
| Type | Standard Zoom | Standard Zoom |
| Closest Focus (m) | 0.7 | 0.38 |
| APS Equivalent | 1.5x: 42 - 120mm; 1.6x: 44.8 - 128mm | 45 - 144mm |
| Diaphragm Blades | 6 | 5 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 28.00 - 80.00 | 28.00 - 90.00 |
| Brand | Tamron | Canon |
| Name | Tamron AF 28-80mm f/3.5-5.6 Aspherical | Canon EF 28-90mm f/4-5.6 III |
| Weight (g) | 237 | 190 |
| Diameter (mm) | 72 | 67 |
| Length (mm) | 70.4 | 71 |
| Notes | Available AF Mounts: Canon, Minolta, Nikon; Included Accessories: Lens Hood | - |
| Lens Construction | 7 elements in 7 groups | 10 elements in 8 groups, including 1 aspherical element |
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