Sean,
if you want more control of the displayed image you can the LiveGrade software with the HDLink device:
http://pomfort.com/livegrade/You can for example use the HDLink device to output a Log-C image as Rec.709, apply an existing Alexa Look or LUT, or even modify the look interactively.
If you are using a Cinema Display instead of an SDI monitor, it might be interesting for you to use an ICC profile for that monitor to get closer to Rec.709. You can find more info how that works with HDLink and LiveGrade here:
http://kb.pomfort.com/?p=373Best,
Patrick
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