Comparison of Canon EF 24mm f/1.4L USM and Sigma 28mm ƒ/1.8 EX DG Aspherical Macro [S]ave
| Attribute |  Sigma 28mm ƒ/1.8 EX DG Aspherical Macro × |  Canon EF 24mm f/1.4L USM × |
|---|---|---|
| Diagonal Angle of View (degree) | 75.40 | 84.00 |
| Filter Size (mm) | 77 | 77 |
| Aperture (f) | 1.80 - 22.00 | 1.40 - 22.00 |
| Closest Focus (m) | 0.2 | 0.25 |
| Magnification Ratio (x) | 0.34 | 0.16 |
| Type | Wide Prime | Wide Prime |
| Focus Details | Internal with Dual Focus mechanism | Inner focusing; full-time manual focus and USM |
| APS Equivalent | 1.5x: 42mm; 1.6x: 44.8mm | 38mm |
| Diaphragm Blades | 9 | 7 |
| Image Circle | 35mm | 35mm |
| Focal Length (mm) | 28.00 | 24.00 |
| Brand | Sigma | Canon |
| Name | Sigma 28mm ƒ/1.8 EX DG Aspherical Macro | Canon EF 24mm f/1.4L USM |
| Weight (g) | 500 | 550 |
| Diameter (mm) | 83.6 | 83 |
| Length (mm) | 82.5 | 77 |
| Notes | Available AF Mounts: Sigma, Canon, Nikon, Minolta, Pentax | - |
| Lens Construction | 10 elements in 9 groups, including 2 aspherical elements | 11 elements in 9 groups, including 1 aspherical and 1 UD element |
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