Comparison of Tamron AF 75-300mm f/4-5.6 LD Macro and Vivitar 100-300mm f/5.6-6.7 Series 1 AF [S]ave
| Attribute |  Tamron AF 75-300mm f/4-5.6 LD Macro × |  Vivitar 100-300mm f/5.6-6.7 Series 1 AF × |
|---|---|---|
| Aperture (f) | 4.00 - 22.00 | 5.60 - 32.00 |
| Filter Size (mm) | 62 | 55 |
| Notes | Available AF Mounts: Canon, Minolta, Nikon, Pentax; Included Accessories: Lens Hood | Available AF mounts: Canon, Minolta, Nikon, Pentax |
| Closest Focus (m) | 1.5 | 1.5 |
| Magnification Ratio (x) | 0.26 | 0.25 |
| Lens Construction | 13 elements in 9 groups | 10 elements in 8 groups |
| Length (mm) | 118.7 | 137.5 |
| Focal Length (mm) | 75.00 - 300.00 | 100.00 - 300.00 |
| APS Equivalent | 1.5x: 112 - 450mm; 1.6x: 120 - 480mm | 1.5x: 150 - 450mm;1.6x: 160 - 480mm |
| Brand | Tamron | Vivitar |
| Image Circle | 35mm | 35mm |
| Name | Tamron AF 75-300mm f/4-5.6 LD Macro | Vivitar 100-300mm f/5.6-6.7 Series 1 AF |
| Weight (g) | 435 | 437 |
| Type | Telephoto Zoom | Telephoto Zoom |
| Diagonal Angle of View (degree) | 8.00 - 33.00 | 8.20 - 24.00 |
| Diaphragm Blades | 9 | - |
| Zoom System | Rotary | Push-Pull |
| Diameter (mm) | 76.6 | 72 |
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