If you want to get much closer to the in-camera JPEGs, you need to create a camera calibration profile.

• Export one typical .RW2 as a DNG file. Be sure you have the matching JPEG available.
• using Adobe’s DNG Profile Editor, tweak the color calibrations until they are satisfactory. Save the Recipe file somewhere, then Export it to the CameraProfiles directory.
• restart Lightroom 2
• pick one G1 RAW file, go into the Develop module, pick the camera calibration with the popup menu in the Camera Calibration panel.
• use the Develop menu to “Set default …”

You can create a camera calibration profile this way to match every in-camera JPEG rendering bundle the camera offers.

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