Tai Shimizu is owner of Stormy Imaging and author of the iPad/iPhone photo editing App Filterstorm, and the Mac HDR app Light Compressor
| Film/Sensor | Diagonal (mm) | Crop Factor (35mm) | Focal Length |
| 645 MF | 75 | 0.6 | |
| 35mm | 43 | 1 | |
| Canon APS-H | 33 | 1.3 | |
| Nikon DX | 29 | 1.5 | |
| Canon APS-C | 27 | 1.6 | |
| Four Thirds | 22.5 | 1.9 | |
| Nikon 1 (1") | 16 | 2.7 | |
| 1/1.7" (Canon S90) | 9.5 | 4.5 | |
| Custom |