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Specifications of three scheimpflug topographers and their comparison
| Topographer | Pentacam | Galilei | Sirius |
|---|---|---|---|
 |
 |
 |
|
| Principle | Single scheimpflug | Dual scheimpflug with placido | Single scheimpflug with placido |
| Acquisition speed | 25 scan images in 2 sec | 25-50 scan images in 2 sec | 25 scan images in 2 sec |
| Points mapped | 25,000 points | 122,000 points | 21632 anterior and 16000 posterior points |
