Nice illustration James - what is you opinion
My personal opinion is between the A-22/75/P45/CFwhatever sized frame to the A-65, P-30 sized frame I don't see that much of a difference in the Contax. Maybe when I go side by side, but I never shoot that way so I find I just adjust, the same way as when I put those crop screens in the Canons . . . I just adjust.
What I do see a difference between the DB and the Canons is the the file quality, whether that is size, or bit depth, I don't know why there is a difference, but I do know if I work a file hard the digital backs usually allow me to move the file around with more depth and a better result.
The Canon's are good though, but they're different cameras than the digital backs.
I do a lot of thethering to a powerbook and the Aptus 22 with V-8 which is the world champ at speed and stability.
I also do a lot of post processing and C-1 wins hands down as it's stable and what you set in the software while shooting, directly translates to the final output.
For the Leaf files the best processing I've seen is through lightroom, but unfortunatley as of today, only the expsoure really translates to the deafult settings of Lightroom, so whatever I set up in V-8 and shoot to, I have to redo when I get to the third party software.
Right now for me and my business a professional on set workflow is as important as the file quality, because all of these files can be moved around.
IMO with Leaf, V-8 is rock stable and fast and LC10 is still a work in progress.
The second most important function of any of these cameras to me is time in post production and workflow.
In my limited thesting the P-30 is good right out of the camera, the A-22 can be made good in lightroom or pscs as long as I essentially home brew my own looks, but once again this only applies to my style of photography.
It seems to me these back manaufacturer's products seems to move back and forth as to who is the best. Last year it seemed Leaf was dominant and now it seems to me that Phase has caught up with the other backs from Hasselblad and Sinar getting better.*
All can be made good, it just depends on how much post work you are capable or willing to do.
Leaf has gone a step backwards mostly because of software, Phase a step forward, but once again, that is as of today.
*(well I assume Sinar has because I've never even seen their back, much less shot with it).