Not 'free' but more in the functionally equivalent mode. Why don't you read Ernst Wendland's paper on the subject that John cited? If you did your own homework a lot more often you would not ask so many needless questions.was it a "free" translation, as in more dynamic then literal?
J.N. Darby had issues with Luther's translation. "Luther's is the most inaccurate I know." Darby translated the New Testament into many European languages. I don't necessarily think his opinion on this is that authoritative though.