Comparison of Sigma APO 50-150mm f/2.8 EX DC HSM and Tokina 50-135mm f/2.8 AT-X 535 AF PRO DX [S]ave
| Attribute |  Tokina 50-135mm f/2.8 AT-X 535 AF PRO DX × |  Sigma APO 50-150mm f/2.8 EX DC HSM × |
|---|---|---|
| Filter Size (mm) | 67 | 67 |
| Notes | BH-671 Lens Hood; Available AF Mounts: Canon and Nikon Digital Only | Available AF Mounts: Sigma, Canon, Nikon; Included Accessories: Lens Hood |
| Closest Focus (m) | 1 | 1 |
| Magnification Ratio (x) | 0.17 | 0.19 |
| Type | Telephoto Zoom | Telephoto Zoom |
| Length (mm) | 135.2 | 132.6 |
| APS Equivalent | 1.5x: 75 - 202.5mm; 1.6x: 80 - 216mm | 1.5x: 75 - 225mm; 1.6x: 80 - 240mm |
| Zoom System | Rotary | Rotary |
| Image Circle | APS-C | APS-C |
| Focal Length (mm) | 50.00 - 135.00 | 50.00 - 150.00 |
| Brand | Tokina | Sigma |
| Name | Tokina 50-135mm f/2.8 AT-X 535 AF PRO DX | Sigma APO 50-150mm f/2.8 EX DC HSM |
| Weight (g) | 845 | 780 |
| Aperture (f) | 2.80 - 32.00 | 2.80 - 22.00 |
| Diaphragm Blades | 9 | 9 |
| Diagonal Angle of View (degree) | 11.13 - 31.05 | 9.50 - 27.90 |
| Lens Construction | 18 elements in 14 groups, including one SD glass element | 18 elements in 14 groups, including 4 SLD elements |
| Diameter (mm) | 78.2 | 76.3 |
| Focus Details | One-touch focus clutch mechanism | HSM (Hyper Sonic Motor) with full-time manual focus override |
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