20mm
| Effective focal length | Angle of view | |
| Full-frame | 20mm | 94.5 degrees |
| APS-H (1.3x crop) | 26mm | 81.5 degrees |
| APS-C (1.5x crop) | 30mm | 70.8 degrees |
| APS-C (1.6x crop) | 32mm | 68.6 degrees |
| APS-C (1.7x crop) | 34mm | 63.8 degrees |
| Four Thirds (2x crop) | 40mm | 56.8 degrees |