In the interests of full disclosure to my friends on the forum, it's time for me to eat some crow here.
I now also have a Leica R9 / DMR, and the reasons are simple:
- I get to use their glass (which I was using on the 1ds2 anyway),
- I can see what I'm focusing on (really see it),
- "out of the camera color" from RAW files is second-to-none: it's superb.
Unlike Edmund R., I still find the 1ds2 has
at least a stop more latitude in the highlights than the DMR (in other words, I can see detail in very bright objects when I've pushed the in-camera exposure up +2EV or so). I thought this just might be my metering method with the Canon, but shooting in controlled conditions with an external meter confirmed this for me.
However, when the highlights do blow out on the DMR, they do so really smoothly and just like transparency film. No "rainbow banding" there.
On the other side, the 1ds2 eats the DMR for lunch in high ISO mode, which also means it has better "push" ability in dark shots.
BUT--and this is a big but--thanks to the viewfinder in the R9, I can now hit critical focus properly with wide open Leica glass.
Microcontrast and color on DMR / DNG files processed in C1 is astounding. Kodachrome-like. Really. Little to no processing in PS to get the look I want. And--when you absolutely nail the exposure--the results are simply breathtaking.
So there you go. If I didn't need shutter speed and IS for about 5% of my shots, well, I hear Canon's next dSLR will have ISO 6400!