I have always imported Olympus photos to Lightroom via an SD card reader on my desktop. Lightroom has always automatically converted them (and Canon and Nikon photos) to .DNG photos. Yesterday I used an SD card reader to load some Olympus photos on my iPad. I then copied them to Lightroom Mobile. Lightroom Mobile then synced them to my desktop Lightroom -- as .ORF photos. Lightroom didn't offer to convert them to .DNG and I can find no way to convert them. I have been able to edit and do anything else I wanted with the .ORF photos. It will probably make no difference in the long run. I just don't like anomalies I can't control. Comments?