Ok so we know at this point what the crop factor is for most lenses which are coming from a full frame photography reference (2.31x)
However, what interests me is some kind of chart or database which shows what happens to depth of field from one format to the next.
An example, I believe I have heard Barry state that roughly what would be the equivalent of f1.4-f2 on the BMC would be equivalent in the depth of field of to f4-f5.6 on a full frame DSLR. (very roughly)
From a practical standpoint, in considering the MFT mount vs. the EF, we know that the MFT would offer greater opportunites for faster lenses and shallower DOF for wide angle lenses.
A chart like this at various F stops starting with say f0.95 would be very helpful in clarifying for me a decision as to the value of switching to the MFT.