Hello all. Long time now, I'm interested in becoming a "Sinner" getting the 756. But I have some questions before I do that. A) Sinn gives 2 or 3 years warranty for it? And B) I wonder if Sinn's luminosity varies between the same model (756,756 S, 756 UTC, and 756 Diapal). Because I saw some old pictures of it with 12-3-6-9 to illuminate. But latest pictures of 756 shows only 12 to illuminate. If that's true, does anybody knows why?