Comparison of Canon EF 100mm f/2 USM and Tokina 100mm f/2.8 ATX-i FF Macro [S]ave
| Attribute |  Tokina 100mm f/2.8 ATX-i FF Macro × |  Canon EF 100mm f/2 USM × |
|---|---|---|
| Filter Size (mm) | 55 | 58 |
| Aperture (f) | 2.80 - 32.00 | 2.00 - 22.00 |
| Closest Focus (m) | 0.3 | 0.85 |
| Magnification Ratio (x) | 1 | 0.14 |
| Type | Telephoto Prime Macro | Telephoto Prime |
| Focus Details | Extending barrel with Focus Clutch mechanism and Focus Limiter | Rear focusing; full-time manual focus and USM |
| APS Equivalent | 1.5x: 150mm; 1.6x: 160mm | 160mm |
| Diameter (mm) | 73 | 75 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 100.00 | 100.00 |
| Brand | Tokina | Canon |
| Name | Tokina 100mm f/2.8 ATX-i FF Macro | Canon EF 100mm f/2 USM |
| Weight (g) | 490 | 460 |
| Diagonal Angle of View (degree) | 24.50 | 24.00 |
| Diaphragm Blades | 9 | 8 |
| Zoom System | - | n/a |
| Length (mm) | 95.1 | 73 |
| Notes | Available AF Mounts: Canon EF Nikon F; Included Accessories: BH-551 Lens Hood | - |
| Lens Construction | 9 elements in 8 groups | 8 elements in 6 groups |
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