Apaflo wrote:
Actually the SD card is at the back of the camera, and the CF card is towards the front. Not that it really matters at all. : - )
But to answer the OP's question, either card can be set to be the "Primary", and of course the other card is then the "Secondary". The use of the Secondary card is selectable as backup, overflow, or for JPEG when the Primary receives RAW files.
Thank you for the information. This really helps and I appreciate you taking the time to answer my questions.