The monitor offers substantially more room for a clear and exact display of the data and permits additional information such as card size, shutter speed and lens type. In contrast to the display on the M8, the information can be easily seen in low light situations. For this reason we decided to remove the display in the top plate.
In principle, all cards complying with the SD/SDHC specifcations will work. Since this market with its many distributers changes quickly, Leica cannot constantly check the compatibility. As we limit our compatibility testing program to tests with SD memory cards manufactured by San Disk, we can only guarantee problem-free camera function with these cards. The read/write speed
of the M9 is limited by the hardware. The maximum achievable read and write speeds are around 12 MB/s. Modern SD cards offering faster read/write speeds may be used in the camera, but do not show better performance when used with the Leica M9/M9-P.