I have a Nikon 200D and have not had any difficulty viewing previews of pics prior to importing into lightroom. n200 uses a cf card. I recently purchased a Leica C Lux 1 which uses a sd card. My problem is that I can't preview my RAW files prior to importing into lightroom. They all are imported and placed in the correct folders etc. I just can't preview them. Any ideas what may be the cause of that? ml