A while ago I mentioned on the blog how I was having issues with files from my 5DII matching what appeared in the camera. I know this is an issue with all cameras but colours and brightness levels seemed especially off on files shot with my 5D. After some trial and error I think I've finally come up with a solution that works for me. While it still doesn't completely match the in-camera look, it gives me a much better approximation. So here's what I do now for every shoot I do with he 5DII The first thing I did was set the boost and hue boost to 50%. Because you can't make this part of an adjustment preset I set this as the default for the camera. (See this previous tip for how to do that)
Once that is set I have a curves adjustment that I apply to every image on import. Basically, because when you turn down the boost you loose some contrast so I used a curves brick to bring it back to where it should be (and unlike having boost turned all the way up it's not skewed towards the bright end of the histogram). I saved this as a preset and now when I import I apply that preset to all images. I'm much happier with the results than I was with the defaults.
I know this might not suit everyone. You may prefer the default look, but if you're finding the same things I am perhaps something similar to this might work for you too. If you want you can download the curves adjustment I used here and try it yourself.
[box type="download"] Download Curves Adjustment Preset[/box]
If you're wondering why I used a curves adjustment rather than a straight up contrast tweak there are a couple of reasons. First, I prefer using curves for contrast as they don't clip either ends of the brightness scale. (See this old post) Secondly, by separating it from the standard enhance brick you can create a baseline that you can always go back to and it frees you to use the enhance brick how you want without having to worry about adjusting your default setup.