These tests were shot during the Hannover Hands-on workshops in August 2012
I'd like to start by thanking the organisers and their support staff as well as my students for making this work....
These are in no way meant to be any kind of definitive test
Alexa Studio recording RAW to a Codex recorder
RED Epic recording RAW at 5:1 to internal SSD (HDR +2)
Sony F65 recording RAW to SR docked recorder
All cameras set to 5600K and no tint, exposure was set with a meter rated at ISO 800
We simply shot the same move at several exposures and picked the exposure that seemed to cope with all lighting conditions best, in all cases I have used ISO 800.
Any size differences are due to us scrambling to compensate for the fact that the Epic sensor is a non-standard size.
3 grading key points were selected, each door-frame and an auto-grade was done as the model went through each point.
Camera settings were neutral and with the one camera that required it Magic Motion was determined prior to the grade using RedCineX.
The grade was in all cases with Da Vinci Resolve 9
There is also a page of the best eposure from each camera carefully graded to get the best out of each.