[miro]

Thanks for quick replay Brightcolour.

See my comments bellow

 

If you assume a certain noise floor comparable to what DXO does, you get 12 stops

 

Ooops you aleredy make an assumption and forget for the second one.

 

The second assumtions is - How do you get the saturation point? 

 

My point is that above metioned absolute Fstops are meaningless unless you specify the conditions. 

This values can be used only to compare two cameras - same as photozone's LW/PH for lenses

 

Some test methodes defines DR fot low quality Normal quality and high quality and the difference is between 2.....5stops

 

PS: My personal taste is 2 stops lower than Dxo