Okay, something is really baffling me. I normally don't use flash (almost always use natural lighting or tungsten lights). I tried taking some portraits with a GX7 in manual exposure mode with off-camera flash (Yongnuo 602 radio triggering a YN560III). The image looks fine in the camera on playback mode. But, when I download the image into Lightroom 5, the image is about 2 stops underexposed. I've spent a couple hours trying to figure out what is happening with no success. NOTE: I can fix the exposure in LR5, but I don't know why there is such a difference from what I see in camera and what is actually downloaded. I thought with digital in-camera images, what you see is what you get. I forgot mention that I shoot in RAW.