PV Explained
This graphic shows a visual representation of what the differences would be in the same telescope, same time, same conditions etc. Obviously the higher the PV (Peak to Valley) fraction measurement results in a more accurate surface and hence a sharper final image.
![](https://www.orionoptics.co.uk/wp-content/uploads/saturnpv.jpeg)
![](https://www.orionoptics.co.uk/wp-content/uploads/saturnpv1.jpeg)
![](https://www.orionoptics.co.uk/wp-content/uploads/saturnpv1a.jpeg)
![](https://www.orionoptics.co.uk/wp-content/uploads/saturnpv2.jpeg)