Comparison of Canon EF 135mm f/2L USM and Sigma APO Macro 150mm f/2.8 EX DG HSM [S]ave
| Attribute |  Sigma APO Macro 150mm f/2.8 EX DG HSM × |  Canon EF 135mm f/2L USM × |
|---|---|---|
| Diagonal Angle of View (degree) | 16.40 | 18.00 |
| Filter Size (mm) | 72 | 72 |
| Aperture (f) | 2.80 - 22.00 | 2.00 - 32.00 |
| Closest Focus (m) | 0.38 | 0.9 |
| Magnification Ratio (x) | 1 | 0.19 |
| Type | Telephoto Prime Macro | Telephoto Prime |
| Focus Details | Internal; HSM with full-time manual focus override | Inner focusing; full-time manual focus and USM |
| APS Equivalent | 1.5x: 225mm; 1.6x: 240mm | 216mm |
| Diaphragm Blades | 9 | 8 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 150.00 | 135.00 |
| Brand | Sigma | Canon |
| Name | Sigma APO Macro 150mm f/2.8 EX DG HSM | Canon EF 135mm f/2L USM |
| Weight (g) | 895 | 750 |
| Diameter (mm) | 79.6 | 82 |
| Length (mm) | 137 | 112 |
| Notes | Available AF Mounts: Sigma, Canon, Nikon, Four-Thirds | - |
| Lens Construction | 16 elements in 12 groups, including 2 SLD elements | 10 elements in 8 groups, including 2 UD elements |
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