[Rover]

And here it is:

http://www.dpreview.com/articles/4106200...ion-filter

 

Looks like T1.7 (?).

 

I think it's great that Fuji is offering such a lens as a choice. It's expensive, but it's also quite unique because it has AF (even if it only does contrast detection). And T1.7 is still far more useful than T4.5 on the Minolta/Sony STF 

Since they have the tech, it's not a given that they won't try it again.