I spent a week up in Seattle shooting an ad for a commercial real estate developer. We shot on RED Dragon with a set of Zeiss Super Speeds MkII. I was pleasantly surprised to discover that I could shoot 6K HD on the 18mm without any noticeable vignetting. The fast lenses came in handy in some of the large spaces we were shooting with a minimal lighting package.
The Dragon sensor continues to amaze me. Highlight rolloff is beautiful and I have had to readjust how I view the onboard monitor, as what I see gives me a different result than the Epic MX sensor did. There is so much more detail in the shadows that I never would have captured before. I'm super happy with the upgrade so far. The only downside is some magenta noise in the shadows at higher ISO, but RED apparently has a fix coming in the next week. In testing, I saw some magenta noise at 800, so I tried to rate most of this shoot around 320-500 ISO to keep the noise levels to a minimum.