1. Can I obtain a meaningfully more accurate camera profile using Colorchecker SG and third party software compared to QP card and matching software?
trace Iliah Borg (he is a member on this forum, sent him a pm) - I bet he did a lot of experiments w/ both.
2. Which software should I use with the Colorchecker SG to generate icc profiles?
argyll is free... +utilities like rawdigger (www.rawdigger.com
) & MakeInputICC ( http://sail2ithaki.livejournal.com/191061.html
) to be used w/ argyll
3. Which software should I use with the Colorchecker SG to generate dcp profiles?
that target has regular CC24 embedded (albeit may be w/ some slightly different patches colorwise) - so Adobe PE will (shall) work... but be warned... Adobe PE is using matrix part from some base profile, only changing LUTs ("2.5D" HSV tables) based on your shot... so you are not really creating a profile - you are adjusting some base profile - and as you might know Adobe itself does not use it for profile creation (that gives you an idea about the quality of it for a serious profiling)... not sure if XRite OEM software can detect CC24 table within Colorchecker SG shot.