Thanks for your advice, I use a hackintosh and there is a pre compiled binary for DCamProf so no problem there and I am good at using the command line where clear instructions are given. But I am not good at understanding the maths & science of making an icc or DCP profile. In short I can follow the steps.
I also recently used the X-Rite program to make an icc profile but when used with DT the pics are dark even after applying the base curve.
My quest is to make as Color accurate profile as possible with Color checker passport.
Thanks.