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| System | Lens Distortion (%, Type) |
|---|---|
| Leisegang Optik 2 | -0.601, Barrel |
| Canon SX50HS | -0.796, Barrel |
| Apple iPhone 5S | -0.935, Barrel |
| 2.0MP POCkeT Colposcope | -4.49, Barrel |
| 5.0MP POCkeT Colposcope | -1.14, Barrel |
When compared with the gold standard Leisegang Optik 2 digital colposcope; all other systems had small amount of barrel distortion of less than 5% and the 2.0MP POCkeT Colposcope had the highest barrel distortion.
