Zacuto’s Great Camera Shootout ’08 from Steve Weiss, Zacuto USA on Vimeo.
Zacuto (the folks in Chicago who make those mix’n’match camera support systems, as well as selling and renting camera packages) have put together a video comparing “35mm motion picture, RED, EX3, HVX200, HPX170, HPX3000, Sony EX3, Nikon D90, Canon 5D Mark II, Letus35 Ultimate and Elite DOF adapters, RedRock Micro and more.” They shot a test of a single scene with all of these combinations, and discuss the results.
If the embedded video isn’t working, or if you only see the small thumbnail, it’s available at http://vimeo.com/2437826
If you want to cut to the chase, the test description is at 5:20, and the minute-long comparison footage starts at 6:24.
Interesting, eh?