I have been trying to create a new camera profile for my Sony RX100 in Lightroom for a few weeks but had been unable to get the software for my Passport Color Checker to work properly. I have now traced the problem to the new version of DNG files that Lightroom 4.3 creates (Lightroom 4.2 seemed to work fine). I resolved the problem by saving my DNG files in the old DNG version 6.6 format.
Don’t worry if the above doesn’t mean much to you, if you have a Sony RX100 and use Lightroom you might want to download and try the profile I created. I found the profile improves the reds and blues (particularly) over the standard Adobe profile.
You can download my profile for free from the Members Area of my Lenscraft. You will need to have signed up as a member but that gives you free access to everything on the site and I don’t pester people with emails other than a quarterly newsletter and the odd announcement.
If you use Lightroom and have an LX5 or GX1 you will also find my profiles for these cameras in the same location.
I hope you find this useful.