I should know this, but is there a way to imbed the C1 raw file with all its adjustments (like an EiP) into an exported tiff that can then be reopened in C1?
Dave
Dave, to my knowledge there is not, the last I read C1 does not offer a way to save its adjustment data into xmp sidecars so that LR can read the adjustments.[/QUOTE]
This misunderstands what a raw file is.
C1 can (and does) write it's adjustments to a sidecar (happens to carry the file extension .cos but it's encoded in XML format). But that's irrelevant.
The final output of any raw editing software (LR/C1/Aperture/whatever) is [Raw data] + [Adjustment Settings] + [Math/Algorithms]
Since C1 does not use the same math as LR* having the same raw data and adjustment settings cannot result in the same image.
So you can either keep the flexibility of a raw file, or you can have the final image produced by C1, but (unless you remain in C1) you cannot have both. The closest you can come is outputting a 16-bit TIFF that is carefully adjusted to not contain any clipped whites or blacks; it's not the same as a raw, but it's as good as you'll get if you want to avail yourself of C1's color/detail/lens algorithms but use some other software to do the rest.
*In my heavily biased opinion this is a very good thing, since I find the math in C1 is
much better