Thank you Little Dragon and especially for that direct link. And thankyou everybody for helping me around. (As I am only two months posering and at my age it is at times more difficult to pick new things up..) I'll put the questions more clearly next time Fretshedder & Elgyfu !..but at times I am wrestling with bump or reflection, obj.,Pz2 and cr2, etc.. But this forum is a great help !