HI ALL last night i took 50, 4 sec subs of m13 on the camera every thing was great lots of stars in the glob,zoomed the 10d in look great no joy with the stack with darks ect. when i looked on the pc at the raws (iso 800) there was nothing there could not work this out heres just 2 of the pics which are single frames i deleted the other 48 next time a will take a few and check them out straight away