Thanks Guys.
My Decision is now final... Next Week Im going on hollidays for some days, and after that Im gonna order the D
MK21. To get colorimages I will use the SPC900 as a camera for the colorinformation, and the DMK for luminance information.. hopefully this will give some nice results, at least until I buy a filterwheel and filters some months later.
Thanks again, I will show you my results