I've been really nutso busy lately and am still deciding how I'm gonna make sense of the ALEXA ASA/Gain test I did a week back. But for now I thought I'd share a short clip of the ALEXA's Log C capture with and without a color-corrected LUT applied. This was a 3D LUT made in the field as a quick reference color grade and not a simple transform LUT. You can really see (even on the small, small screen) how much detail the ALEXA picks up in the shadow areas of the frame (pay close attention to our ladies hair).
And check out this article from ARRI's website. It's a quick Q&A with DP Anna Foerster on her experience using the ALEXA for the first time.